1988 EX1

1988EX1, 1999 GC25, 1999GC25, 43770, J88E01X, J99G25C

All data for this body: [vot]

MPC data
Name (number) 1988 EX1 (43770)
a 3.11990
e 0.09260
i / sin(i) 5.4412 / 0.09482
q 2.83099
Q 3.40880
ω 177.8026
Node 34.3544
m 254.0633
n 0.1789
Epoch 2460800.5
nobs 2334
nopp 24
Years observed 1988-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.108
ep 0.135
sin(ip) 0.087
G 0.150
H 14.140
Mass
D 7.42 0.049
pV 0.094 0.0056
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 7.801
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
3.1083 0.1347 0.0867 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.24 0.063 0.063 Masiero 2011ApJ...741...68M NEATM
7.71 0.080 0.080 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.090 0.0069 0.0069 Masiero 2011ApJ...741...68M NEATM
0.102 0.0095 0.0095 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
14.14 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 0.3658 0.5850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.6010 0.5850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.308 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.70 Bus VIS Carvano 2010A&A...510A..43C PHOT