The third day after the window opened, the small hours of May 1, and the moment came for No. 1's terminal maneuver.
No one at the station had slept well the night before. Not because something was wrong—precisely because nothing was. The table gave the maneuver time as 3:11 a.m.; by two the machine room was full, no one having called anyone. Chairs ran short as always; those without stood at the cabinets, those with folding stools sat on them. Someone brought tea; by the time it reached the back rows it was plain water. The clock hung above the power cabinet, its second hand moving one square at a time, neither fast nor slow.
She had not come early; the front rows were gone long since. Hu Yisu did not sit. He stood by the power cabinet, the spot with the straightest view of the clock. Someone asked him the time. He said, look yourself. The man said, I don't dare. He gave no answer. The graduate student had claimed the spot under the vent, saying it was warm there. The old comrades came in fullest force, not one missing—some were half through their retirement paperwork and had asked leave specially to come back. The leave slip gave the reason: to be there on time.
At 2:50 the room shut every light that needn't burn, leaving the screens and the clock. No one proposed it; the duty man turned them off as he went, and halfway through someone said quietly, leave one. That one lamp stayed lit until daybreak.
At 3:11 the message from the control center arrived, one line: No. 1's maneuver time reached; presumed executed as scheduled.
Presumed executed as scheduled. The station had rehearsed those four words for half a year. Iron chunks that fly faster than light, and words that can only come home at the speed of light—what they were doing this minute, not a word of it could Earth see. What could be seen was only the table. The table said the hour and the minute; when the hour came, it was done. The message's wording was Hu Yisu's, settled half a year before. The day it was finalized someone had objected: four words too vague; the outside world would ask whether it had been executed or not. Hu Yisu said: These are the most honest four words I can write. Not one word may be added—it is not executed, it is presumed executed as scheduled. The three words missing are eleven years and four months of road, and no one can walk them in its place.
The duty log turned to the second frame, 002. Copy the message, log receipt, sign. A minute and it was done. No one left. Someone asked under his breath: That's it? The duty man said: That's it. The one who asked nodded and sat another half hour. Only toward dawn did the room empty out, folding stools carried off one by one, cold tea poured into the bucket. Going out, every face wore the same look—not letdown; the first time the word "done" had been set down on something solid, and they weren't used to how light it was.
From the next day on, the days became a table of squares.
No. 3 maneuvered, No. 5, No. 8. A few hours to a dozen-odd hours between each; each time an impactor reached its mark, one line of message, copy, sign. Seven people rotated, one cell each in the signature column. The station called it roll call—your number called, you answer present. The proof of presence was the table, not the thing itself.
The message had a format. Number, time, those four words; not one word more, not one word less. The format still followed the paper records—number first, time after, conclusion at the end. Someone said everything runs on frame numbers now; why copy these. Hu Yisu said: Frame numbers are for the machine. This is for people. What people must read must have a people's format. Seven signatures, seven hands. Some signed fast, the pen down and done; some slow, one stroke a stroke. Engineer Ma's characters were smallest, tucked into the center of the cell; the graduate student's were large, often breaking the cell line, and when they did he put a dot beside, which counted as owning it. Her name stood fourth on the rotation chart, and every time she signed she looked one extra moment at the three names above—checking whether they had signed crooked. No one asked her to look. She looked. Twenty years; no crooked signatures in the account.
The first two days the machine room stayed full; from the third day the crowd thinned—everyone had understood: this one had no picture. If a screen could have lit up with the fire of eleven years from now, the station would have sat up with it for a month. No screen. There was only the sound of the teleprinter feeding paper, square by square, like very slow rain.
The families' quarter learned to read progress off the canteen menu. A day with an extra dish was a big thing; days without were small things; between big and small, the days went on. A primary school teacher brought her pupils past the gate to look at the antennas, and told the same story as twenty years ago, when the stream first went up—nothing about this month. Told, the children still couldn't see it. A child asked, did it hit. The teacher said, it hit. The child asked, where do we watch. The teacher pointed at the sky, then at the calendar. The hitting is over there; the days are in this. The children weren't satisfied with that answer; they squatted outside the gate counting antennas. Six, they counted, and asked why only six. The teacher said the rest you can't see; they're in the sky. How many are in the sky, the children asked. Forty-odd, said the teacher; they've just left. Left for where, the children asked. The teacher thought: to bring back the answer from eleven years from now. Why eleven years, said the child. The teacher said: They travel fast; words travel slow. The children were satisfied with that, and lined up to go back.
Nothing showed on the telemetry screen. The old telemetry of those 44 still arrived pack by pack on the 90-day rhythm, and in the packs they were all alive—attitude normal, spin normal, formation in order. That was how they looked eleven years ago. Every morning she listened through the sequence once; forty-four tones, all there, all even. She was listening to their likenesses of eleven years past, like leafing an old album. The first days she didn't think it through; on the fifth morning, halfway through, her hand stopped—what she was listening to were death portraits, and the subjects of the portraits were, at this moment by the table, driving into a star's shell, had been for nearly a week. Once the graduate student couldn't hold it in: Do we still listen? She said: We listen. The account must be reconciled to the last line. Reconciled for whom to see, he asked. She thought: For us, eleven years from now, to see. By then we'll be able to see; there had better be an account to check against. She didn't read the packs' contents, only verified the serial numbers. Ninety days between packs—ninety of their days; the road eats eleven years, so on Earth they arrive as an ordinary queue. Once a pack came four hours late; the station traced a circle and found the ground receiving end had swapped disks. For those four hours, three men from the receiving station came to the door, records in hand, to explain. She said no need to explain; arriving is enough. The youngest of the three wouldn't have it: Four hours is still an event. She looked at him: Remember that. In your line of work, this is exactly what you take seriously.
The S table got its line a day, checked. Line 7,397. Line 7,401. Line 7,404. 0.37. The flat line turned twenty years old this month. In twenty years she had worn out three bone-conduction rigs and filled twenty-seven notebooks, every one numbered. The 0.37 had not changed. Once, checking, she thought: this line was longer than half the station's working lives; if one day it moved, she wouldn't know what posture to face it in. The youngest of the seven had asked her, how far do you watch this line. She said: Until I can't. And when you can't, he said. Then it goes to hands younger than mine. And if it never moves, he said. She said: As long as it doesn't move, someone will keep watching. She said it flatly, but the young man remembered, and later copied it onto the flyleaf of his own duty book.
On the fifth day a small thing went wrong. The routine re-check before No. 12's mark fell to Engineer Ma. He ran the book orbit solution, and the residual column put up a head—not large; inside the old tolerance, outside the new. He walked the three days of solutions through again, into the back of the night, and found it wasn't the star; the solution parameters were stale: a batch of coordinate benchmarks had been swapped two years back, and four impactors' parameters hadn't followed. He updated the parameters, resolved again, the residual fell back. In the register he wrote: solution parameters updated; does not constitute a deviation. And after it he added: No. 12 presumed executed as scheduled.
At handover that morning he told the whole story, told it finely: how large the residual, how found, which three steps checked, why he judged it the parameters. Then he said: I tell it this finely because those four words—presumed executed as scheduled—stand on exactly this fineness. The table didn't fall out of the sky; we computed the table square by square. Get one square wrong, and "presumed" goes hollow. The four that didn't get their parameters—it wasn't their fault; it was on the hands that keep the account. There are hands in the account, and hands err; err, own it; own it, correct it—that is the difference between us and that star. It doesn't err. It only goes.
As the meeting broke up someone asked him, and if it's a real deviation? He said: If it's real, we can't see it now either. What we can do is keep the account clean—a clean account, and when the light comes to be checked against, eleven years from now, ours will match.
That sentence later went up on the handover-room wall, beside the rotation chart. No signature. Someone took a sheet to mark down its source, held the pen out to Engineer Ma; he waved it off: Who said it doesn't matter. The meaning is the meaning. That day after the meeting he didn't leave; he sat alone in the machine room another hour. She saw him still there as she went out. The next day she asked him what he'd sat there doing. He said: Walked No. 12's three days of solutions through one more time. She said they'd been checked. He said: Checking is for others to see. Walking it again is for me. I signed. Those three words I'll carry until 2053.
Wednesday was Hu Yisu's shift, the last Wednesday inside the window. His shift took three in a row—No. 22, No. 23, No. 25—three lines of message, three signatures. On the third he signed slower than the first two, one stroke a stroke. Before the third line arrived he turned the duty log to a blank page, turned it back, turned it over three times. People watched; no one asked. Later he said it himself: Wanted to leave a line for whoever comes after; thought, and had no words. Someone said: Leave a date, then. He said the log has dates. Then nothing. When he'd signed he set the pen down and sat the shift full, eight hours—there was nothing else to do; he simply sat, keeping the machine company while the clock ran out. Once he passed water to the man standing behind the cabinets, and drank a cup himself. Near handover he stood, pushed the shift chair back where it belonged; a chair leg scraped the floor, and he said: A shift like this doesn't come twice in a lifetime. The man relieving him said: No. He said: So don't resent it for being dull. It's the dull shifts that earn your signature.
The last one left the window at dusk on May 9.
No. 44. The message: No. 44 out of window; presumed executed as scheduled. Full chain executed.
Full chain executed. Copied into the log, receipt signed. Forty-four lines of message, forty-three signatures—one line carried a joint signature, two men, the handover that day landing on a maneuver time. The April page of the signature column was full; exactly full. The rotation chart came down off the wall; Engineer Ma did the tearing, and he tore slowly, and the page went first into lamination, then into the archive bag. Into the bag beside it went his extrapolation sheet, a year under glass. The two bags sat side by side.
The frame-number ledger ran to two volumes. The first began at 001, the first line in Hu Yisu's own hand. Both volumes went to the archive, numbered, shelved. The archive wasn't at the station; it was in Shanghai—same room as the paper records. Lu Weiming received the shelving notice and sent back one line: Put it next to mine. The archive complied. One rack, nineteen years apart, two accounts side by side. People later back from Shanghai said there were always people standing before that wall, more reading the paper, and plenty reading the new ledger. The caption ran two sentences: This one, nineteen years, fourteen thousand and more numbers. That one, eleven days, forty-four lines.
That evening the canteen added the extra dish again. Same recipe. An old comrade, taking his portion, said: Second time this year. The server said: Same again tomorrow—and every year after. People laughed, and carried their trays off. The canteen closed late that night; no one drank; the station had never allowed it. At lights-out, the duty man left the lamp by the door for last.
At night she finished the S table's last line. Line 7,405, 0.37, signed. This month's lines she had counted square by square, matched square by square against the messages; not one line wrong. She looked up; on the telemetry screen the old data still walked pack by pack—forty-four, attitude normal, formation in order. They didn't know they were finished—what happened over there, those them over there, would take another eleven years and four months to be known by screens here. For eleven years the packs would keep arriving, one after another, reporting all well on the road, right up to the pack that reported the strike, and past that one, nothing. She could already compute the last pack's number. It computed like this: one pack per 90 days, eleven years and four months; multiply out the packs, add the few converted in the final leg—and out came a seven-digit number. She ran it twice; twice the same. A number like that, the her of twenty years ago would have entered as a line in the notebook, a circle around it in the footer. Now she only set it down in her mind, like setting something down gently. She wrote nothing. No one who waited could live to read it.
The zero on the countdown page jumped to new words three days after. Not a number—a date: April 2053.
If it can be seen, it's on the road.
She copied the date from that page into the small notebook she carried, closed it, and put it in her left breast pocket.