Happelia

00578, 1899 KA, 1899KA, 1905 VJ, 1905VJ, 1958 HN, 1958HN, I99K00A, J05V00J, J58H00N

All data for this body: [vot]

MPC data
Name (number) Happelia (578)
a 2.75309
e 0.19407
i / sin(i) 6.1271 / 0.10673
q 2.21880
Q 3.28737
ω 262.4304
Node 29.1622
m 170.4099
n 0.2158
Epoch 2460800.5
nobs 8197
nopp 58
Years observed 1905-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.752
ep 0.182
sin(ip) 0.109
G 0.150
H 9.550
Mass
D 67.15 0.839
pV 0.072 0.0029
Value
Rotational Period 10.060
Period quality 3
Spectral Class Cg
Spectral Class Score 21.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7519 0.1823 0.1087 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
56.15 18.780 18.780 Nugent 2016AJ....152...63N NEATM
60.06 18.650 18.650 Nugent 2016AJ....152...63N NEATM
64.05 12.810 12.810 Ali-Lagoa 2018A&A...612A..85A NEATM
64.58 1.120 1.120 Usui 2011PASJ...63.1117U NEATM
67.21 3.580 3.580 Masiero 2012ApJ...759L...8M NEATM
69.29 2.100 2.100 Tedesco 2002AJ....123.1056T STM
69.82 6.980 6.980 Ali-Lagoa 2018A&A...612A..85A NEATM
70.00 5.000 5.000 Hanus 2013A&A...551A..67H LC
72.78 3.293 3.293 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
73.23 2.549 2.549 Ryan&Woodward 2010AJ....140..933R IRAS-STM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.064 0.0130 0.0130 Ali-Lagoa 2018A&A...612A..85A NEATM
0.068 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM
0.069 0.0048 0.0048 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.070 0.0064 0.0064 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.070 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.076 0.0300 0.0300 Ali-Lagoa 2018A&A...612A..85A NEATM
0.077 0.0050 0.0050 Tedesco 2002AJ....123.1056T STM
0.080 0.0700 0.0700 Nugent 2016AJ....152...63N 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
9.55 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.061 3- Synodic Robinson 2002MPBu...29...30R Lightcurve
10.0628 3 Synodic Behrend LCDB Lightcurve
10.0645 2 Sidereal Hanus 2013A&A...551A..67H Model
10.0648 3 Synodic Behrend LCDB Lightcurve
10.065 3 Synodic Warner 2008MPBu...35..163W Lightcurve
10.066 3 Synodic Franco 2022MPBu...49..342F Lightcurve
10.07 1 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C P 0.440000 0.410000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Cg Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC
X 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.1391 0.1050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Xc Bus VIS Bus 2002Icar..158..146B SPEC