Asteroids

2017RB15 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

1.000

Aphelion (Q)

1.963

Eccentricity (e)

0.325

Inclination (i)

2.0

deg

Orbit period (P)

658.7

Earth MOID

0.00980

U parameter

7.8

Next Earth close approach

Date

2026-10-30

Nominal distance (from Earth center)

0.03343

5001004

Maximum Brightness

22.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-09-12

Observatory

Pan-STARRS 1, Haleakala

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.481536

1-sigma variation

0.000966

Unit

Eccentricity (e)

Value

0.324814

1-sigma variation

0.000437

Unit

Inclination (i)

Value

1.9724

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

173.3611

1-sigma variation

0.0006

Unit

Arg. of Perihelion (ω)

Value

207.5679

1-sigma variation

0.0055

Unit

Mean Anomaly (M)

Value

288.69824

1-sigma variation

1.69651

Unit

Perihelion distance

Value

1.000313

1-sigma variation

Unit

Aphelion distance

Value

1.962759

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.867510

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.022943

1-sigma variation

Unit

MOID

Value

0.009801

1-sigma variation

Unit

Orbit Period

Value

658.6684

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.34109E-7	4.22540E-7	2.16939E-6	5.40614E-7	-5.33111E-6	-1.63966E-3
e	4.22540E-7	1.91134E-7	9.81314E-7	2.44545E-7	-2.41149E-6	-7.41695E-4
i	2.16939E-6	9.81314E-7	5.03829E-6	1.25546E-6	-1.23811E-5	-3.80798E-3
Ω	5.40614E-7	2.44545E-7	1.25546E-6	3.13070E-7	-3.08531E-6	-9.48952E-4
ω	-5.33111E-6	-2.41149E-6	-1.23811E-5	-3.08531E-6	3.04323E-5	9.35782E-3
M	-1.63966E-3	-7.41695E-4	-3.80798E-3	-9.48952E-4	9.35782E-3	2.87814E0

Date of computation: 2026-07-30 14:25 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

27.737

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

8 - 17*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

3312

Unit

Source

[1]

Normalized RMS of residuals

Value

0.524135

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-09-12.31055

Unit

Source

[2]

Last Observation

Value

2017-09-22.33308

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

19 (0)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2017RB15 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1959-08-26 03:21	> 1 d	0.1829535	0.0030065	0.0743063
EARTH	1968-10-15 16:57	> 1 w	0.0177719	0.0088732	0.0135527
EARTH	1988-08-25 07:04	> 1 w	0.1875974	0.0037353	0.1135543
EARTH	1997-11-18 01:20	> 1 w	0.1379759	0.0263427	0.1138502
EARTH	2017-09-22 22:34	< 1 min	0.0148149	0.0147604	0.0000182
EARTH	2026-10-30 21:10	> 1 w	0.0334296	0.0185247	0.0307892
EARTH	2055-08-29 12:43	284.3	0.1597754	0.1514574	0.0027806
EARTH	2064-10-31 06:00	> 1 d	0.0340607	0.0195117	0.0086164
EARTH	2084-09-02 08:03	> 1 d	0.1172447	0.0790521	0.0127420
EARTH	2093-11-24 20:58	375.6	0.1981015	0.1869914	0.0037096
EARTH	2113-09-24 05:44	> 1 d	0.0173909	0.0094245	0.0091049
EARTH	2122-10-31 20:29	1135.8	0.0304257	0.0252967	0.0017886

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
349.74605210	263.13167859	0.00980136	MINIMUM
178.66943688	95.07591768	0.96128646	SADDLE
357.25988806	93.62820086	2.00177081	SADDLE
178.56425653	275.00220076	2.96104635	MAXIMUM

Download:

MOID Plots

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