1999 AS

1999AS, 1996 HQ12, 1996HQ12, 28225, J96H12Q, J99A00S

All data for this body: [vot]

MPC data
Name (number) 1999 AS (28225)
a 2.62597
e 0.14439
i / sin(i) 4.7904 / 0.08351
q 2.24682
Q 3.00513
ω 285.4976
Node 53.6857
m 188.2848
n 0.2316
Epoch 2460800.5
nobs 3626
nopp 21
Years observed 1996-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.627
ep 0.130
sin(ip) 0.071
G 0.150
H 14.340
Mass
D 4.14 0.171
pV 0.284 0.0649
Value
Rotational Period 3.065
Period quality 2
Spectral Class S
Spectral Class Score 13.819
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6272 0.1299 0.0712 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.14 0.171 0.171 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.284 0.0649 0.0649 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.34 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.06482 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.306 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9978 0.9990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9993 0.9990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT