Nephele

00431, 1897 YB, 1897YB, 1906 HC, 1906HC, 1933 KC, 1933KC, 1949 YS, 1949YS, 1955 DU, 1955DU, I97Y00B, J06H00C, J33K00C, J49Y00S, J55D00U

All data for this body: [vot]

MPC data
Name (number) Nephele (431)
a 3.14158
e 0.17107
i / sin(i) 1.8283 / 0.03190
q 2.60414
Q 3.67902
ω 217.8648
Node 117.1614
m 75.7781
n 0.1770
Epoch 2460800.5
nobs 8760
nopp 69
Years observed 1902-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.130
ep 0.157
sin(ip) 0.013
G 0.150
H 9.090
Mass 5.850e+17 2.927e+17
D 95.24 0.554
pV 0.064 0.0016
Value
Rotational Period 13.500
Period quality 3
Spectral Class C
Spectral Class Score 54.970
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1296 0.1570 0.0133 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.4400e+17 4.1400e+17 4.1400e+17 Fienga 2020MNRAS.492..589F Ephem
4.2600e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
101.90 0.990 0.990 Masiero 2012ApJ...759L...8M NEATM
102.11 5.015 5.015 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
103.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
112.33 39.390 39.390 Masiero 2020PSJ.....1....5M NEATM
121.62 41.600 41.600 Masiero 2020PSJ.....1....5M NEATM
68.60 3.617 3.617 Masiero 2011ApJ...741...68M NEATM
79.49 7.950 7.950 Ali-Lagoa 2018A&A...612A..85A NEATM
84.58 2.590 2.590 Ryan&Woodward 2010AJ....140..933R IRAS-STM
90.87 1.290 1.290 Usui 2011PASJ...63.1117U NEATM
94.58 1.030 1.030 Masiero 2014ApJ...791..121M NEATM
95.03 1.600 1.600 Tedesco 2002AJ....123.1056T STM
99.40 9.940 9.940 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.034 0.0270 0.0270 Masiero 2020PSJ.....1....5M NEATM
0.038 0.0330 0.0330 Masiero 2020PSJ.....1....5M NEATM
0.055 0.0050 0.0050 Masiero 2012ApJ...759L...8M NEATM
0.056 0.0055 0.0055 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.056 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.064 0.0020 0.0020 Tedesco 2002AJ....123.1056T STM
0.080 0.0050 0.0050 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.088 0.0180 0.0180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.123 0.0333 0.0333 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
9.09 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.47 1 Synodic Behrend LCDB Lightcurve
13.47 2- Synodic Behrend LCDB Lightcurve
13.47 2- Synodic Behrend LCDB Lightcurve
13.47 2 Synodic Behrend LCDB Lightcurve
13.518 2 Synodic Carreno 2019MPBu...46..200C Lightcurve
13.53 3 Synodic Pilcher 2017MPBu...44..294P Lightcurve
18.821 2 Synodic Wang 2010EM&P..106...97W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B Bus VIS Bus 2002Icar..158..146B SPEC
B Bus VIS Lazzaro 2004Icar..172..179L SPEC
B Tholen VIS Lazzaro 2004Icar..172..179L SPEC
B B 0.3787 0.3787 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
BF Howell VISNIR Howell 1994JGR....9910847H PHOT
C Bus-DeMeo NIR de Leon 2012Icar..218..196D SPEC
C Bus-DeMeo VISNIR Clark 2010JGRE..115.6005C SPEC
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.59 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.970000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
C B 0.800000 0.200000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
C C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT