Independent Distant Object SurveyA public search notebook

Rubin / Lasair · field record

lasair_329.5_-15.0

known

Centre RA 329.500°, Dec -15.000°. Approximate footprint half-width 1.5°.

Latest substantive campaign entry

Detections
6,712
Nights
5
Stationary removed
4
Hypotheses
57,115
Injection recovery
3/4 planted objects

Lasair campaign 2026-11-08 18:42 — 23 field(s) · complete.

Recorded log text
- injection test (V ≤ 24.0):
  recovered 3/4 planted objects; 5 candidate(s) in total
- 6712 detections, 4 stationary removed, 5 nights; 1397 anchors × hypotheses = 57115; survivors per stage [4170, 18]; 200.9s
  #1  [weak] r= 45.75±0.434 AU  a=128.20 e=0.819 i= 3.04°  4 obs / 4 nights / 18 d  rms 0.06"  H=6.26, D≈149–371 km  [matches 2025 OK344]
  #2  [weak] r= 33.59±0.431 AU  a=542.09 e=0.959 i= 7.35°  7 obs / 4 nights / 18 d  rms 0.07"  H=6.98, D≈107–267 km  [matches 2025 OV342]
- 421 s

On-disk search report

This report may describe a different rerun from the campaign log. Statistics are shown separately; curated findings supply reviewed identifications.

Detections
6,712
Nights
5
Exposures
52
Stationary removed
4
Hypotheses
57,115
Search seconds
201

Report candidates and identifications

Candidate #1 weak

Known: 2025 OK344

Distance r
45.75 AU
Observations / nights
4 / 4
Dates
2026-06-26 – 2026-07-14 (MJD 61,217.4–61,235.3)
Arc
17.9 days
Radial rms
0.06″
Orbit fit
a = 128.20 AU; e = 0.819; i = 3.04°
Absolute magnitude H
6.26
Diameter estimate
149–371 km (albedo 0.25–0.04)

Candidate #2 weak

Known: 2025 OV342

Distance r
33.59 AU
Observations / nights
7 / 4
Dates
2026-06-26 – 2026-07-14 (MJD 61,217.4–61,235.4)
Arc
18.0 days
Radial rms
0.07″
Orbit fit
a = 542.09 AU; e = 0.959; i = 7.35°
Absolute magnitude H
6.98
Diameter estimate
107–267 km (albedo 0.25–0.04)

Campaign history