Ilsebill

00919, 1918 UD, 1918UD, 1935 JG, 1935JG, 1950 RP, 1950RP, 1950 SE, 1950SE, 1950 TN, 1950TN, 1972 MA, 1972MA, J18U00D, J35J00G, J50R00P, J50S00E, J50T00N, J72M00A

All data for this body: [vot]

MPC data
Name (number) Ilsebill (919)
a 2.77325
e 0.08502
i / sin(i) 8.1654 / 0.14203
q 2.53747
Q 3.00902
ω 156.7537
Node 229.8040
m 38.4584
n 0.2134
Epoch 2460800.5
nobs 10804
nopp 43
Years observed 1918-2025
rms 0.46
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.772
ep 0.050
sin(ip) 0.155
G 0.150
H 11.640
Mass
D 33.02 0.059
pV 0.070 0.0010
Value
Rotational Period 5.032
Period quality 3
Spectral Class C
Spectral Class Score 17.680
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7722 0.0502 0.1555 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
27.06 8.140 8.140 Masiero 2021PSJ.....2..162M NEATM
27.27 0.217 0.217 Ryan&Woodward 2010AJ....140..933R MSX-STM
27.65 1.700 1.700 Tedesco 2002AJ....123.1056T STM
27.71 1.227 1.227 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
29.13 10.920 10.920 Masiero 2021PSJ.....2..162M NEATM
31.49 11.730 11.730 Masiero 2020PSJ.....1....5M NEATM
31.73 7.450 7.450 Masiero 2020PSJ.....1....5M NEATM
32.23 1.796 1.796 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
32.45 9.300 9.300 Masiero 2021PSJ.....2..162M NEATM
32.60 7.912 7.912 Masiero 2017AJ....154..168M NEATM
32.78 3.280 3.280 Ali-Lagoa 2018A&A...612A..85A NEATM
33.17 0.160 0.160 Nugent 2016AJ....152...63N NEATM
33.41 0.490 0.490 Usui 2011PASJ...63.1117U NEATM
33.50 0.070 0.070 Masiero 2014ApJ...791..121M NEATM
33.70 6.740 6.740 Ali-Lagoa 2018A&A...612A..85A NEATM
34.44 0.254 0.254 Masiero 2011ApJ...741...68M NEATM
38.64 12.970 12.970 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.027 0.0460 0.0460 Masiero 2012ApJ...759L...8M NEATM
0.032 0.0140 0.0240 Masiero 2021PSJ.....2..162M NEATM
0.036 0.0250 0.0250 Masiero 2020PSJ.....1....5M NEATM
0.036 0.0500 0.0500 Masiero 2020PSJ.....1....5M NEATM
0.040 0.0190 0.0360 Masiero 2021PSJ.....2..162M NEATM
0.043 0.0180 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.045 0.0087 0.0087 Masiero 2011ApJ...741...68M NEATM
0.045 0.0242 0.0242 Masiero 2017AJ....154..168M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.050 0.0200 0.0200 Ali-Lagoa 2018A&A...612A..85A NEATM
0.051 0.0197 0.0197 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.052 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.070 0.0060 0.0060 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.070 0.0100 0.0100 Tedesco 2002AJ....123.1056T STM
0.072 0.0011 0.0011 Ryan&Woodward 2010AJ....140..933R MSX-STM
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
11.64 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.0325 3 Synodic Pligge 2011MPBu...38..137P Lightcurve
5.03347 2 Sidereal Durech 2020A&A...643A..59D Model
5.03348 2 Sidereal Durech 2018A&A...617A..57D Model
5.03351 2 Sidereal Durech 2023A&A...675A..24D Model
5.034 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C Bus VIS Bus 2002Icar..158..146B SPEC
C Tholen VIS Tatsumi 2022A&A...664A.107T SPEC
C 0.940000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
C 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C None None Movis NIR Popescu 2018A&A...617A..12P PHOT
G Tholen VIS Tatsumi 2022A&A...664A.107T SPEC
X 0.684 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT