1997 UA9

1997UA9, 16815, 1970 EK, 1970EK, 1989 YX5, 1989YX5, J70E00K, J89Y05X, J97U09A

All data for this body: [vot]

MPC data
Name (number) 1997 UA9 (16815)
a 2.55894
e 0.02434
i / sin(i) 11.0475 / 0.19162
q 2.49666
Q 2.62122
ω 129.4004
Node 58.6114
m 126.3427
n 0.2408
Epoch 2460800.5
nobs 4440
nopp 25
Years observed 1970-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.559
ep 0.066
sin(ip) 0.179
G 0.150
H 12.730
Mass
D
pV
Value
Rotational Period 2.918
Period quality 3
Spectral Class C/X
Spectral Class Score 18.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5588 0.0662 0.1795 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
12.73 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.9 2+ Synodic Polishook 2014MPBu...41...49P Lightcurve
2.9174 3- Synodic Pravec LCDB Lightcurve
2.91763 3- Synodic Pravec 2019Icar..333..429P Lightcurve
2.917712 2 Sidereal Polishook 2020Icar..33613415P Model
2.91773 2+ Synodic Pravec 2019Icar..333..429P Lightcurve
2.91773 3- Synodic Pravec 2019Icar..333..429P Lightcurve
2.91773 3 Synodic Pravec 2019Icar..333..429P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C/X Bus-DeMeo NIR Polishook 2014Icar..233....9P SPEC
M C 0.570000 0.340000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
X X 0.2820 0.2820 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT