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Minor planet follow-up portal
v. 3.17.1
11398 (1998 YP11)
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Data
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Type
NEO (Amor)
Status
Actively Following
Characterization Target
Source
LCOGT
UTC date
------------ Any 1.0m ------------
LSC 1.0m - W85-87; (CTIO, Chile)
ELP 1.0m - V37,V39; (McDonald, Texas)
COJ 1.0m - Q63-64; (Siding Spring, Aust.)
CPT 1.0m - K91-93; (Sutherland, S. Africa)
TFN 1.0m - Z31,Z24; (Tenerife, Spain)
------------ Any 0.4m ------------
LSC 0.4m - W89,W79; (CTIO, Chile)
ELP 0.4m - V38,V45,V47; (McDonald, Texas)
OGG 0.4m - T03-04; (Maui, Hawaii)
COJ 0.4m - Q58-59; (Siding Spring, Aust.)
CPT 0.4m - L09; (Sutherland, S. Africa)
TFN 0.4m - Z17,Z21; (Tenerife, Spain)
------------ Any 2.0m ------------
FTS 2.0m - E10; (Siding Spring, Aust.) [MuSCAT4]
FTN 2.0m - F65; (Maui, Hawaii ) [MuSCAT3]
------------ Non LCO ------------
Mt John 1.8m - 474 (Mt John, NZ)
Site
Min Altitude
Check Spectroscopic Feasibility
Create LC Plot
Recent Blocks Scheduled
2026-01-14T04:50:00
2026-01-14T11:12:00
ELP
Req: 4083006
2026-01-14T04:50:00
2026-01-14T11:12:00
ELP
Req: 4083007
2026-01-17T04:34:00
2026-01-17T11:00:00
ELP
Req: 4085389
2026-01-17T04:34:00
2026-01-17T11:00:00
ELP
Req: 4085388
Measurements
Show Measurements
Plot Visibility
Last Update: 2026-Jul-12 07:46
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61233.0
July 12, 2026
Orbital inclination in deg
15.02194
Longitude of Ascending Node (deg)
144.70723
Arg of perihelion (deg)
74.78606
Eccentricity
0.3891112
Mean distance (AU)
1.7210858
Mean Anomaly (deg)
23.38874
Absolute Magnitude (H)
16.37
Slope Parameter (G)
0.15
Albedo (average)
0.17
Albedo (range)
0.01 - 0.60
Diameter in meters (average)
1890
Diameter in meters
(range)
913 - 7072
Physical Parameters
Absolute Magnitude
E2026-EA1
16.36
Albedo
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)
0.318
+/- 0.095
Rotation Period
REFERENCE LIST:[Pravec, P.; et al. (2005) Icarus 173, 108-131.], [Warner, B.D. (2008) Minor Planet Bull. 35, 163-167.], [Warner, B.D. (2017) Minor Planet Bull. 44, 223-237.], [Warner, B.D. (2017) Minor Planet Bull. 44, 335-344.]
LCDB (Rev. 2023-October); Warner et al., 2009
38.6 h
Diameter
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)
1.316 km
+/- 0.349
Follow-up Details
Number of observations
4356
Arc length (days)
7670.00
Time since last observation (days)
1.86
Spectroscopy Details
(Plots)
SMASS Spectra
Vis+NIR
Known Taxonomies
None
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