Scenario08

HST V3 Trajectory 08

Asymmetric NMC around a rigid body retrograde-pointing target with low angle illumination, high-inclination LEO, uncontrolled camera

Natural-motion circumnavigation (NMC)LEO, high inclination1000 frames6 s/frame90° FoVillum ~165°rigid bodystereo

Trajectory card & sample video

trajectory_08_card.png · HST_DatasetV3_08_color.mp4
QuaternionRelative attitude of the target in the camera frame, per frame.
Target translationTarget position in the camera frame. tz is the range on the left axis (m); tx/ty use the right axis.
Optical-axis angleAngle from the chaser body front axis to the Sun, the Earth centre and the target — the annotation’s SunToCameraAngle, EarthToCameraAngle and TargetToCameraAngle. A flat 0° target trace means the chaser is pointed at the target.
Scene / illuminationBands along the bottom: eclipse or daylight, plus when the Earth and the Sun are inside the field of view.
TrajectoryAsymmetric NMC around a rigid body retrograde-pointing target with low angle illumination, high-inclination LEO, uncontrolled camera. Radial separation 0 m · along-track min -50 m · along-track max 15 m · initial phase 0 rad. Starts at 2025-12-07T18:03:00 UTC.
PlaybackCentre camera, colour post-process, every rendered frame in order — 1000 frames at 30 fps = 33.3 s · 1024×1024 · H.264 · no audio · 24.0 MB

Configuration

Target orbit

Regime
LEO, high inclination
NORAD ID
56123

Keplerian elements

Semi-major axis a (derived)
6861.2 km
Eccentricity e
0.0001069
Inclination i
43.0046°
RAAN Ω
344.9929°
Argument of perigee ω
273.8720°
Mean anomaly M
86.2010°

Mean motion & derived

Mean motion
15.27575203 rev/day
Orbital period
94.27 min
Mean altitude
483.1 km
// target two-line element set
1 56123U 23046AH  26161.20673701  .00000126  00000-0  14094-4 0  9995
2 56123  43.0046 344.9929 0001069 273.8720  86.2010 15.27575203176346

Target spacecraft

Attitude mode
Retrograde (anti-velocity) pointing
Attitude hold
Controlled

Articulation

Solar-panel Sun tracking
not enabled
TDRS antenna tracking
not enabled
Appendage motion
none — rigid body

Camera & render

Behaviour
Attitude solved once and then held — target drifts through the field of view
Attitude mode
Triad (two-vector) pointing
Primary
BodyFront → Target
Secondary
BodyUp → Normal
Attitude hold
Uncontrolled
Target angle
oscillates 0–45°

Optics & render

Horizontal field of view
90° (default)
fx = fy (derived)
512.00
cx = cy
512
Cameras
Center · Right
Resolution
1024×1024 px
Pixel samples
32
Camera axes
−Z forward · +X right · +Y down

Relative trajectory

Generator
Natural-motion circumnavigation (NMC)
Step name
NaturalMotionCircnavOrbitGenerator
Max radial separation
0 m
Min along-track offset
-50 m
Max along-track offset
15 m
Initial phase
0 rad
Random seed
8

Timing

Start epoch (UTC)
2025-12-07T18:03:00.0000000Z
Frames
1000
Time step
6 s
Duration
6000 s
Duration (clock)
1 h 40 min 0 s
Orbits covered (derived)
1.06

Illumination

Class
~165°
Sun optical-axis angle
constant ≈ 158°
Spotlight
Auto
// 180° = Sun directly behind the camera (target fully lit)
// ~165° = low phase angle · ~95° = high phase angle