Hedera

01251, 1907 GD, 1907GD, 1915 CA, 1915CA, 1929 CD1, 1929CD1, 1931 TJ2, 1931TJ2, 1933 BE, 1933BE, 1975 NW1, 1975NW1, J07G00D, J15C00A, J29C01D, J31T02J, J33B00E, J75N01W

All data for this body: [vot]

MPC data
Name (number) Hedera (1251)
a 2.71817
e 0.15583
i / sin(i) 6.0516 / 0.10543
q 2.29459
Q 3.14174
ω 217.1373
Node 140.5918
m 312.3972
n 0.2199
Epoch 2460800.5
nobs 8250
nopp 47
Years observed 1915-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.718
ep 0.117
sin(ip) 0.091
G 0.150
H 10.910
Mass
D 13.24 0.150
pV 0.636 0.0501
Value
Rotational Period 19.000
Period quality 3-
Spectral Class Xn
Spectral Class Score 21.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7176 0.1174 0.0912 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.24 0.150 0.150 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.636 0.0501 0.0501 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
10.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
15.015 2 Synodic Shevchenko 2003P&SS...51..525S Lightcurve
19.9 3- Synodic Oey 2008MPBu...35..132O Lightcurve
19.90194 2 Sidereal Martikainen 2021A&A...649A..98M Model
19.902 2 Sidereal Durech 2016A&A...587A..48D Model
19.902 2 Sidereal Durech 2018Icar..304..101D Model
19.915 2+ Synodic Behrend LCDB Lightcurve
19.915 3- Synodic Behrend LCDB Lightcurve
19.985 2 Synodic Chiorny 2007P&SS...55..986C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C X 0.1597 0.3860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C X 0.7310 0.3860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
E Tholen VISNIR Fornasier 2008Icar..196..119F SPEC
E K 0.530000 0.360000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S E 0.550000 0.450000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC
X 0.701 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
X X 0.8919 0.3860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Xn Bus-DeMeo VISNIR Hasegawa 2017PASJ...69...99H SPEC