1999 PR4

1999PR4, 74592, J99P04R

All data for this body: [vot]

MPC data
Name (number) 1999 PR4 (74592)
a 2.23447
e 0.15235
i / sin(i) 3.4038 / 0.05937
q 1.89405
Q 2.57488
ω 226.0476
Node 191.6304
m 192.9839
n 0.2951
Epoch 2460800.5
nobs 1572
nopp 18
Years observed 1999-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.234
ep 0.153
sin(ip) 0.064
G 0.150
H 15.850
Mass
D
pV
Value
Rotational Period 2.000
Period quality 2
Spectral Class S
Spectral Class Score 20.982
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2342 0.1528 0.0640 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
15.85 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.5 2 Synodic Erasmus 2018ApJS..237...19E Lightcurve
2.5 2 Synodic Erasmus 2019ApJS..242...15E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.895000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT
S 0.899000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT
S 0.906 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S V 0.7970 0.5470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V V 0.9208 0.5470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT