Schedule Observations Schedule Spectroscopic Observations
NameP12fR9O → 2025 SX21
Type NEO
Status Not Following
Source Minor Planet Center
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Recent Blocks Scheduled
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Measurements
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Last Update: 2025-Sep-30 00:11
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
60947.0 Sept. 29, 2025
Orbital inclination in deg 3.54274
Longitude of Ascending Node (deg) 329.26744
Arg of perihelion (deg) 97.77249
Eccentricity 0.5560956
Mean distance (AU) 2.4085647
Mean Anomaly (deg) 343.77569
Absolute Magnitude (H) 23.3
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 78
Diameter in meters
(range)		 38 - 291
Physical Parameters
Diameter Initial Diameter Guess using H=23.3 and albedo=0.14 (0.01 to 0.5)

MPC Default
77.71 m +213.0 / -37.0
Absolute Magnitude MPC Default
23.3
Follow-up Details
NEOCP digest2 score 96
Number of observations 8
Arc length (days) 0.63
Time since last observation (days) 0.80
Spectroscopy Details
Known Taxonomies None