1999 JY31

1999JY31, 2000 QY76, 2000QY76, 35797, J99J31Y, K00Q76Y

All data for this body: [vot]

MPC data
Name (number) 1999 JY31 (35797)
a 2.42431
e 0.15679
i / sin(i) 2.4061 / 0.04198
q 2.04420
Q 2.80442
ω 245.5474
Node 146.1373
m 155.4323
n 0.2611
Epoch 2460800.5
nobs 2919
nopp 21
Years observed 1991-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.425
ep 0.133
sin(ip) 0.036
G 0.150
H 14.660
Mass
D 3.06 0.252
pV 0.357 0.1540
Value
Rotational Period 3.500
Period quality 3-
Spectral Class S
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4248 0.1325 0.0361 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.05 0.279 0.279 Masiero 2011ApJ...741...68M NEATM
3.13 0.591 0.591 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.344 0.2874 0.2874 Masiero 2011ApJ...741...68M NEATM
0.362 0.1824 0.1824 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
14.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.52 3- Synodic Chang 2014ApJ...788...17C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT