| Parameter |
Value |
| Designation |
P/2015 TP200 (LINEAR) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-10-28T04:52:00.001920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:16Z |
| Obs used |
693 |
| NEO |
- |
| M1 |
6.800 |
| K1 |
15.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2016-11-16.0000000 |
| e |
0.53612967 |
| q (au) |
3.385307 |
| a (au) |
7.297961 |
| i (deg) |
8.772293 |
| Ω (om, deg) |
6.975445 |
| ω (w, deg) |
82.735610 |
| M (ma, deg) |
0.939714 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.546 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.546 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.957 |
| δ90 |
1.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
17:58:53.65 |
-32:55:14.1 |
HIP 87985 |
6.58 |
| 2026-06-01 12:00 |
17:58:43.66 |
-32:55:24.1 |
HIP 87985 |
4.53 |
| 2026-06-02 00:00 |
17:58:33.63 |
-32:55:33.8 |
HIP 87985 |
2.55 |
| 2026-06-02 12:00 |
17:58:23.56 |
-32:55:43.2 |
HIP 87985 |
1.16 |
| 2026-06-03 00:00 |
17:58:13.45 |
-32:55:52.3 |
HIP 87985 |
2.29 |
| 2026-06-03 12:00 |
17:58:03.29 |
-32:56:01.2 |
HIP 87985 |
4.27 |
| 2026-06-04 00:00 |
17:57:53.10 |
-32:56:09.8 |
HIP 87985 |
6.36 |
| 2026-06-04 12:00 |
17:57:42.86 |
-32:56:18.1 |
HIP 87985 |
8.48 |
| 2026-06-05 00:00 |
17:57:32.59 |
-32:56:26.1 |
HIP 87985 |
10.62 |
| 2026-06-05 12:00 |
17:57:22.29 |
-32:56:33.9 |
HIP 87985 |
12.78 |
| 2026-06-06 00:00 |
17:57:11.95 |
-32:56:41.3 |
HIP 87985 |
14.94 |
| 2026-06-06 12:00 |
17:57:01.57 |
-32:56:48.5 |
HIP 87853 |
15.67 |
| 2026-06-07 00:00 |
17:56:51.16 |
-32:56:55.4 |
HIP 87853 |
15.59 |
| 2026-06-07 12:00 |
17:56:40.73 |
-32:57:02.0 |
HIP 87853 |
15.82 |
| 2026-06-08 00:00 |
17:56:30.26 |
-32:57:08.4 |
HIP 87853 |
16.34 |
| 2026-06-08 12:00 |
17:56:19.76 |
-32:57:14.4 |
HIP 87853 |
17.13 |
| 2026-06-09 00:00 |
17:56:09.23 |
-32:57:20.1 |
HIP 87853 |
18.15 |
| 2026-06-09 12:00 |
17:55:58.68 |
-32:57:25.6 |
HIP 87853 |
19.38 |
| 2026-06-10 00:00 |
17:55:48.10 |
-32:57:30.7 |
HIP 87853 |
20.76 |
| 2026-06-10 12:00 |
17:55:37.49 |
-32:57:35.6 |
HIP 87853 |
22.29 |
| 2026-06-11 00:00 |
17:55:26.86 |
-32:57:40.2 |
HIP 87853 |
23.92 |
| 2026-06-11 12:00 |
17:55:16.21 |
-32:57:44.5 |
HIP 87853 |
25.65 |
| 2026-06-12 00:00 |
17:55:05.54 |
-32:57:48.4 |
HIP 87853 |
27.45 |
| 2026-06-12 12:00 |
17:54:54.85 |
-32:57:52.1 |
HIP 87853 |
29.31 |
| 2026-06-13 00:00 |
17:54:44.14 |
-32:57:55.5 |
HIP 87613 |
31.19 |
| 2026-06-13 12:00 |
17:54:33.41 |
-32:57:58.6 |
HIP 87613 |
30.53 |
| 2026-06-14 00:00 |
17:54:22.67 |
-32:58:01.4 |
HIP 87613 |
30.02 |
| 2026-06-14 12:00 |
17:54:11.91 |
-32:58:03.9 |
HIP 87613 |
29.66 |
| 2026-06-15 00:00 |
17:54:01.14 |
-32:58:06.1 |
HIP 87613 |
29.47 |
| 2026-06-15 12:00 |
17:53:50.36 |
-32:58:08.0 |
HIP 87613 |
29.45 |
| 2026-06-16 00:00 |
17:53:39.57 |
-32:58:09.6 |
HIP 87613 |
29.60 |
| 2026-06-16 12:00 |
17:53:28.77 |
-32:58:10.9 |
HIP 87613 |
29.92 |
| 2026-06-17 00:00 |
17:53:17.96 |
-32:58:11.9 |
HIP 87361 |
28.28 |
| 2026-06-17 12:00 |
17:53:07.14 |
-32:58:12.6 |
HIP 87361 |
26.01 |
| 2026-06-18 00:00 |
17:52:56.32 |
-32:58:13.0 |
HIP 87361 |
23.74 |
| 2026-06-18 12:00 |
17:52:45.49 |
-32:58:13.0 |
HIP 87361 |
21.48 |
| 2026-06-19 00:00 |
17:52:34.66 |
-32:58:12.8 |
HIP 87361 |
19.21 |
| 2026-06-19 12:00 |
17:52:23.83 |
-32:58:12.3 |
HIP 87361 |
16.94 |
| 2026-06-20 00:00 |
17:52:13.00 |
-32:58:11.5 |
HIP 87361 |
14.68 |
| 2026-06-20 12:00 |
17:52:02.17 |
-32:58:10.4 |
HIP 87361 |
12.42 |
| 2026-06-21 00:00 |
17:51:51.34 |
-32:58:09.0 |
HIP 87361 |
10.16 |
| 2026-06-21 12:00 |
17:51:40.51 |
-32:58:07.3 |
HIP 87361 |
7.92 |
| 2026-06-22 00:00 |
17:51:29.69 |
-32:58:05.3 |
HIP 87361 |
5.70 |