T−11:31:36·H3-24 · Martian Moons eXploration (MMX)·Tanegashima Space CenterDetails →
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Week in Space Data, every Friday.
Slip Watch · weekly
Slip Watch: Oct 12 to Oct 18, 2026
No launch date really slipped this week. Placeholder date rolls (5) are recorded and not counted.
Frozen edition. Published October 19, 2026; these figures will not change. Corrections, if any, are logged on /corrections.
Real slips
0
0 launches, both dates known to the day
Days lost to slips
0
no slips
Pulled in
0
moved a day or more earlier
Not slips
10
5 placeholder rolls, 5 firmed, 0 lost a date
Biggest slips
SpaceNexus Launch Ledger
No real slips in this period.
Slips by provider
Slips by launch provider
Provider
Slips
Launches slipped
Days lost
Median slip
Pulled in
Same-day
Firmed
Lost a date
Placeholder rolls
Arianespace
0
0
0
n/a
0
0
1
0
4
China Aerospace Science and Technology Corporation
On time: launches that flew in the week
On-time record of launches flown in the period
Provider
Flew
Scored
Within 1 day
Within 7 days
Average delay
Median delay
All providers
4
4
75%
75%
+3.2 d
+0.2 d
SpaceX
3
3
67%
67%
+4.3 d
+0.4 d
LandSpace
Pulled in
No launch was pulled in by a day or more.
Lost a firm date
No launch lost a firm date.
Placeholder rolls and firmings (recorded, not slips)
Launch Library parks an undated launch at the end of a period (“NET 2026” is stored as Dec 31, 2026). When that placeholder moves, nothing was announced and nothing slipped, so these rows are listed for completeness and never counted.