4780 P-L

4780P-L, 19870, 1997 GZ21, 1997GZ21, J97G21Z, PLS4780

All data for this body: [vot]

MPC data
Name (number) 4780 P-L (19870)
a 3.17667
e 0.10852
i / sin(i) 5.3469 / 0.09319
q 2.83193
Q 3.52141
ω 311.6973
Node 184.5670
m 54.4013
n 0.1741
Epoch 2460800.5
nobs 2718
nopp 23
Years observed 1960-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.166
ep 0.144
sin(ip) 0.095
G 0.150
H 13.730
Mass
D 9.95 0.153
pV 0.075 0.0196
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 11.529
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1655 0.1438 0.0952 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.14 0.265 0.265 Masiero 2011ApJ...741...68M NEATM
10.20 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
9.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.075 0.0196 0.0196 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
13.73 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B B 0.1651 0.4170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4353 0.4170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4815 0.4170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.5063 0.4170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.44 Bus VIS Carvano 2010A&A...510A..43C PHOT
C B 0.4704 0.4170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT