Lompoc, California, USA

Saturday, October 10, 2026

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Lompoc, California, USA
High 74°F, low 59°F.

Rocket launch

Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A

Launched - good from here

Lifted off 12:39 AM

Very LowExcellent
Look
W
Crossing your sky
When
12:39 AM
Highest around 12:48 AM
Distance
9 mi
Climbs to
86°
Lighting
Dark sky
Launch site
Space Launch Complex 4E
Vandenberg SFB, CA, USA
Landing
12:47 AM
Land - Landing Zone 4, back toward W
Mission
Government/Top Secret
Tranche 1 Transport Layer A is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites.

The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance.

This launch carries 21 satellites manufactured by Northrop Grumman.

A bright climbing star and a flame. The vehicle is in shadow itself, so there is no lit plume behind it.

That morning

Sunrise

Low

7:03 AM

Very LowExcellent
Cloud
100%around 9 AM
Rain
Dryaround 9 AM
Humidity
85%
Wind
4 mph
6:38 AM Blue hour
7:00 AM Best color
7:03 AM Sunrise
7:37 AM Golden hour ends

Best color is when the sky has actually looked its best, learned from 23 camera photos of past sunrises at Big Sur, California, USA, 219 km away.

Satellite

Tiangong space station

Modest pass, N to ENE

Rose 5:38 AM

Very LowExcellent
Look
N
Rising, then up to N
When
5:38 AM
until 5:41 AM
Visible for
3m 20s
Highest
29° N
Ends
Sets ENE

Steady, silent, and about as fast as a high aircraft.

Sunset

Fair

6:33 PM

Very LowExcellent
Cloud
100%around 7 PM
Rain
Dryaround 7 PM
Humidity
74%
Wind
7 mph
5:59 PM Golden hour
6:33 PM Sunset
6:58 PM Blue hour ends

Moon

New moon

0% lit

7:08 AM – 6:24 PM

ESE WSW
7:08 AM Moonrise
7:28 AM 4°
12:47 PM Highest, 44°
6:04 PM 4°
6:24 PM Moonset

Between the two 4° marks the Moon is clear of haze and most of what stands on the horizon.

How this day turned out

Morning 9 AM 62°F Overcast
100% dry 85% 4 mph
Afternoon 2 PM 71°F Clear sky
5% dry 58% 11 mph
Evening 7 PM 61°F Overcast
100% dry 74% 7 mph
Late Night 11 PM 59°F Overcast
100% dry 74% 8 mph

Timetable

  • Morning blue hour 6:38 AM–7:03 AM
  • Morning best color 7:00 AM
  • Sunrise 7:03 AM
  • Morning golden hour 7:03 AM–7:37 AM
  • Moonrise 7:08 AM
  • Evening golden hour 5:59 PM–6:33 PM
  • Moonset 6:24 PM
  • Sunset 6:33 PM
  • Evening blue hour 6:33 PM–6:58 PM
  • Fully dark 7:57 PM–5:40 AM
  • Dark, no Moon 7:57 PM–5:40 AM

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