Discovery

09770, 1993 EE, 1993EE, 1994 RJ12, 1994RJ12, J93E00E, J94R12J

All data for this body: [vot]

MPC data
Name (number) Discovery (9770)
a 2.28285
e 0.14686
i / sin(i) 3.9517 / 0.06892
q 1.94760
Q 2.61810
ω 68.3258
Node 136.1995
m 91.7516
n 0.2858
Epoch 2460800.5
nobs 2594
nopp 23
Years observed 1993-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.282
ep 0.184
sin(ip) 0.063
G 0.150
H 14.930
Mass
D 7.00 0.027
pV 0.040 0.0036
Value
Rotational Period 3.940
Period quality 2
Spectral Class B
Spectral Class Score 14.948
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2820 0.1839 0.0630 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.32 1.010 1.010 Masiero 2020PSJ.....1....5M NEATM
5.86 1.580 1.580 Masiero 2021PSJ.....2..162M NEATM
7.00 0.027 0.027 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0037 0.0037 Masiero 2011ApJ...741...68M NEATM
0.060 0.0230 0.0370 Masiero 2021PSJ.....2..162M NEATM
0.075 0.0310 0.0310 Masiero 2020PSJ.....1....5M 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
14.93 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.946662 2 Sidereal Durech 2018A&A...617A..57D Model
3.947 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.586 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.2324 0.5710 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.7898 0.5710 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.8831 0.5710 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C B 0.5644 0.5710 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT