NORTHROP GRUMMAN · VEHICLE PROFILE · DATA AS OF 2026-05-14
Pegasus XL
Operational
Expendable
Micro
39
Flights
Success / Partial / Failure
92.31%
Success Rate
36/39 flights
—
Fleet Leader
No booster telemetry
Jun 13, 2021
Cadence
Last completed flight
RELIABILITY & S/PF/F SPLIT
92.31%
Overall success rate · Wilson 95% LB 79.68%
36
Success
0
Partial Failure
3
Failure
0
Scrubbed
Days since last failure10782 days
Current success streak29
Last completed flightJun 13, 2021
Methodology IP
S/PF/F split is non-negotiable methodology. Partial failures are NOT collapsed into failures. A partial (e.g. payload delivered to wrong orbit, booster lost on otherwise-successful flight) is treated as a distinct outcome for underwriting. See /methodology/.
RECENT FLIGHTS
| Date | Mission | Payload | Outcome | |
|---|---|---|---|---|
| Jun 13, 2021 | Odyssey | — · 443 kg | Success | |
| Oct 11, 2019 | ICON | — · 443 kg | Success | |
| Dec 15, 2016 | CYGNSS E | — · 443 kg | Success | |
| Jun 28, 2013 | IRIS | — · 443 kg | Success | |
| Jun 13, 2012 | NuSTAR | — · 443 kg | Success | |
| Oct 19, 2008 | IBEX | — · 443 kg | Success | |
| Apr 16, 2008 | C/NOFS | — · 443 kg | Success | |
| Apr 25, 2007 | AIM | — · 443 kg | Success | |
| Mar 22, 2006 | Space Technology 5 FWD | — · 443 kg | Success | |
| Apr 15, 2005 | HAPS 8 | — · 443 kg | Success |
PAYLOAD & ORBIT MIX
17.3K kg
Total mass lifted
—
Most-flown orbit
0% gov
Gov / commercial split
0
Crewed flights
OPERATOR CONTEXT
OperatorNorthrop Grumman
REGISTRY DATA
First flight1990-04-05
Registry launches45 (as of 2025-12-31)
ClassMicro
Height17 m
Fairing diameter1.27 m
ReusabilityExpendable
List price$40.0M
Payload capacity (kg)
LEO443 kg
Source: space_launch_vehicle_registry.json · Operator page →
METHODOLOGY
Per-vehicle reliability is aggregated from the AstraVeris launch_events table with Wilson 95% lower-bound error estimates. Subsystem outcomes are extracted by a local Gemma model from primary-source articles — outcomes are never fabricated; absence of a row means "not tracked". Aspirational vehicles (not yet flown) carry registry-only metadata with explicit "Not yet flown" banners. Full specifications: /methodology/. Licensing terms: /data-licensing/.
Not investment advice. For insurance underwriting, verify against operator investigation reports.