P/2019 T6 (PANSTARRS)
| Parameter |
Value |
| Designation |
P/2019 T6 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-11-07T18:13:43.798080Z |
| Orbit solution date (soln_date, UTC) |
2021-05-31T22:43:04Z |
| Obs used |
229 |
| NEO |
- |
| M1 |
17.200 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-10-08T11:16:09.120000Z |
| Discovery magnitude (MPC) |
19.60 i |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2019-11-12.0000000 |
| e |
0.62222327 |
| q (au) |
2.051927 |
| a (au) |
5.431587 |
| i (deg) |
18.697018 |
| Ω (om, deg) |
71.310948 |
| ω (w, deg) |
328.909725 |
| M (ma, deg) |
0.330162 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.257 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.257 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
10.000 |
| 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) |
| 2026-02-03 00:00 |
15:10:06.56 |
-07:37:15.0 |
HIP 74267 |
9.75 |
| 2026-02-03 12:00 |
15:10:10.36 |
-07:37:08.0 |
HIP 74267 |
8.87 |
| 2026-02-04 00:00 |
15:10:14.05 |
-07:37:00.5 |
HIP 74267 |
8.03 |
| 2026-02-04 12:00 |
15:10:17.64 |
-07:36:52.4 |
HIP 74267 |
7.21 |
| 2026-02-05 00:00 |
15:10:21.12 |
-07:36:43.9 |
HIP 74267 |
6.44 |
| 2026-02-05 12:00 |
15:10:24.49 |
-07:36:34.8 |
HIP 74267 |
5.71 |
| 2026-02-06 00:00 |
15:10:27.75 |
-07:36:25.3 |
HIP 74267 |
5.03 |
| 2026-02-06 12:00 |
15:10:30.90 |
-07:36:15.2 |
HIP 74267 |
4.41 |
| 2026-02-07 00:00 |
15:10:33.94 |
-07:36:04.7 |
HIP 74267 |
3.86 |
| 2026-02-07 12:00 |
15:10:36.88 |
-07:35:53.6 |
HIP 74267 |
3.39 |
| 2026-02-08 00:00 |
15:10:39.70 |
-07:35:42.0 |
HIP 74267 |
3.04 |
| 2026-02-08 12:00 |
15:10:42.41 |
-07:35:29.9 |
HIP 74267 |
2.83 |
| 2026-02-09 00:00 |
15:10:45.01 |
-07:35:17.3 |
HIP 74267 |
2.76 |
| 2026-02-09 12:00 |
15:10:47.51 |
-07:35:04.2 |
HIP 74267 |
2.83 |
| 2026-02-10 00:00 |
15:10:49.88 |
-07:34:50.6 |
HIP 74267 |
3.02 |
| 2026-02-10 12:00 |
15:10:52.15 |
-07:34:36.5 |
HIP 74267 |
3.30 |
| 2026-02-11 00:00 |
15:10:54.31 |
-07:34:22.0 |
HIP 74267 |
3.63 |
| 2026-02-11 12:00 |
15:10:56.35 |
-07:34:06.9 |
HIP 74267 |
3.98 |
| 2026-02-12 00:00 |
15:10:58.28 |
-07:33:51.3 |
HIP 74267 |
4.36 |
| 2026-02-12 12:00 |
15:11:00.09 |
-07:33:35.2 |
HIP 74267 |
4.73 |
| 2026-02-13 00:00 |
15:11:01.79 |
-07:33:18.7 |
HIP 74267 |
5.11 |
| 2026-02-13 12:00 |
15:11:03.38 |
-07:33:01.6 |
HIP 74267 |
5.47 |
| 2026-02-14 00:00 |
15:11:04.86 |
-07:32:44.1 |
HIP 74267 |
5.83 |
| 2026-02-14 12:00 |
15:11:06.21 |
-07:32:26.1 |
HIP 74267 |
6.17 |
| 2026-02-15 00:00 |
15:11:07.46 |
-07:32:07.6 |
HIP 74267 |
6.50 |
| 2026-02-15 12:00 |
15:11:08.59 |
-07:31:48.6 |
HIP 74267 |
6.81 |
| 2026-02-16 00:00 |
15:11:09.60 |
-07:31:29.1 |
HIP 74267 |
7.11 |
| 2026-02-16 12:00 |
15:11:10.50 |
-07:31:09.2 |
HIP 74267 |
7.39 |
| 2026-02-17 00:00 |
15:11:11.29 |
-07:30:48.8 |
HIP 74267 |
7.65 |
| 2026-02-17 12:00 |
15:11:11.95 |
-07:30:27.9 |
HIP 74267 |
7.90 |
| 2026-02-18 00:00 |
15:11:12.51 |
-07:30:06.5 |
HIP 74267 |
8.14 |
| 2026-02-18 12:00 |
15:11:12.94 |
-07:29:44.7 |
HIP 74267 |
8.37 |
| 2026-02-19 00:00 |
15:11:13.26 |
-07:29:22.4 |
HIP 74267 |
8.58 |
| 2026-02-19 12:00 |
15:11:13.46 |
-07:28:59.7 |
HIP 74267 |
8.77 |
| 2026-02-20 00:00 |
15:11:13.55 |
-07:28:36.5 |
HIP 74267 |
8.96 |
| 2026-02-20 12:00 |
15:11:13.52 |
-07:28:12.8 |
HIP 74267 |
9.14 |
| 2026-02-21 00:00 |
15:11:13.37 |
-07:27:48.7 |
HIP 74267 |
9.32 |
| 2026-02-21 12:00 |
15:11:13.11 |
-07:27:24.1 |
HIP 74267 |
9.48 |
| 2026-02-22 00:00 |
15:11:12.73 |
-07:26:59.1 |
HIP 74267 |
9.64 |
| 2026-02-22 12:00 |
15:11:12.24 |
-07:26:33.7 |
HIP 74267 |
9.80 |
| 2026-02-23 00:00 |
15:11:11.62 |
-07:26:07.8 |
HIP 74267 |
9.96 |
| 2026-02-23 12:00 |
15:11:10.89 |
-07:25:41.5 |
HIP 74267 |
10.13 |
| 2026-02-24 00:00 |
15:11:10.05 |
-07:25:14.7 |
HIP 74267 |
10.29 |