P/2023 T1 (PANSTARRS)
| Parameter |
Value |
| Designation |
P/2023 T1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-05-22T21:33:12.375360Z |
| Orbit solution date (soln_date, UTC) |
2024-01-19T23:44:32Z |
| Obs used |
118 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
24.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-10-09T10:51:57.686400Z |
| Discovery magnitude (MPC) |
20.43 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2023-10-25.0000000 |
| e |
0.33527882 |
| q (au) |
2.816851 |
| a (au) |
4.237642 |
| i (deg) |
6.605954 |
| Ω (om, deg) |
249.585164 |
| ω (w, deg) |
202.871185 |
| M (ma, deg) |
336.171856 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.590 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.590 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.896 |
| 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 |
14:03:53.78 |
-18:09:20.0 |
HIP 68833 |
25.38 |
| 2026-02-03 12:00 |
14:04:00.96 |
-18:10:19.2 |
HIP 68833 |
23.91 |
| 2026-02-04 00:00 |
14:04:07.90 |
-18:11:17.3 |
HIP 68833 |
22.56 |
| 2026-02-04 12:00 |
14:04:14.61 |
-18:12:14.1 |
HIP 68833 |
21.35 |
| 2026-02-05 00:00 |
14:04:21.09 |
-18:13:09.7 |
HIP 68833 |
20.27 |
| 2026-02-05 12:00 |
14:04:27.34 |
-18:14:04.1 |
HIP 68833 |
19.34 |
| 2026-02-06 00:00 |
14:04:33.36 |
-18:14:57.3 |
HIP 68833 |
18.56 |
| 2026-02-06 12:00 |
14:04:39.14 |
-18:15:49.3 |
HIP 68833 |
17.94 |
| 2026-02-07 00:00 |
14:04:44.69 |
-18:16:40.0 |
HIP 68833 |
17.48 |
| 2026-02-07 12:00 |
14:04:50.01 |
-18:17:29.4 |
HIP 68833 |
17.17 |
| 2026-02-08 00:00 |
14:04:55.09 |
-18:18:17.7 |
HIP 68833 |
17.00 |
| 2026-02-08 12:00 |
14:04:59.93 |
-18:19:04.6 |
HIP 68833 |
16.98 |
| 2026-02-09 00:00 |
14:05:04.53 |
-18:19:50.3 |
HIP 68833 |
17.07 |
| 2026-02-09 12:00 |
14:05:08.90 |
-18:20:34.7 |
HIP 68833 |
17.27 |
| 2026-02-10 00:00 |
14:05:13.03 |
-18:21:17.9 |
HIP 68833 |
17.56 |
| 2026-02-10 12:00 |
14:05:16.91 |
-18:21:59.7 |
HIP 68833 |
17.92 |
| 2026-02-11 00:00 |
14:05:20.56 |
-18:22:40.3 |
HIP 68833 |
18.35 |
| 2026-02-11 12:00 |
14:05:23.97 |
-18:23:19.6 |
HIP 68833 |
18.82 |
| 2026-02-12 00:00 |
14:05:27.13 |
-18:23:57.5 |
HIP 68833 |
19.31 |
| 2026-02-12 12:00 |
14:05:30.05 |
-18:24:34.2 |
HIP 68833 |
19.83 |
| 2026-02-13 00:00 |
14:05:32.73 |
-18:25:09.6 |
HIP 68833 |
20.36 |
| 2026-02-13 12:00 |
14:05:35.17 |
-18:25:43.6 |
HIP 68833 |
20.90 |
| 2026-02-14 00:00 |
14:05:37.37 |
-18:26:16.3 |
HIP 68833 |
21.43 |
| 2026-02-14 12:00 |
14:05:39.32 |
-18:26:47.7 |
HIP 68833 |
21.95 |
| 2026-02-15 00:00 |
14:05:41.02 |
-18:27:17.8 |
HIP 68833 |
22.45 |
| 2026-02-15 12:00 |
14:05:42.48 |
-18:27:46.5 |
HIP 68833 |
22.94 |
| 2026-02-16 00:00 |
14:05:43.70 |
-18:28:13.9 |
HIP 68833 |
23.41 |
| 2026-02-16 12:00 |
14:05:44.67 |
-18:28:39.9 |
HIP 68833 |
23.86 |
| 2026-02-17 00:00 |
14:05:45.40 |
-18:29:04.6 |
HIP 68833 |
24.28 |
| 2026-02-17 12:00 |
14:05:45.88 |
-18:29:27.9 |
HIP 68833 |
24.67 |
| 2026-02-18 00:00 |
14:05:46.11 |
-18:29:49.9 |
HIP 68833 |
25.04 |
| 2026-02-18 12:00 |
14:05:46.10 |
-18:30:10.4 |
HIP 68833 |
25.38 |
| 2026-02-19 00:00 |
14:05:45.84 |
-18:30:29.7 |
HIP 68833 |
25.70 |
| 2026-02-19 12:00 |
14:05:45.34 |
-18:30:47.5 |
HIP 68833 |
25.99 |
| 2026-02-20 00:00 |
14:05:44.60 |
-18:31:04.0 |
HIP 68833 |
26.25 |
| 2026-02-20 12:00 |
14:05:43.60 |
-18:31:19.0 |
HIP 68833 |
26.49 |
| 2026-02-21 00:00 |
14:05:42.36 |
-18:31:32.7 |
HIP 68833 |
26.71 |
| 2026-02-21 12:00 |
14:05:40.88 |
-18:31:45.0 |
HIP 68833 |
26.91 |
| 2026-02-22 00:00 |
14:05:39.15 |
-18:31:55.9 |
HIP 68833 |
27.08 |
| 2026-02-22 12:00 |
14:05:37.18 |
-18:32:05.5 |
HIP 68833 |
27.25 |
| 2026-02-23 00:00 |
14:05:34.97 |
-18:32:13.6 |
HIP 68833 |
27.39 |
| 2026-02-23 12:00 |
14:05:32.51 |
-18:32:20.3 |
HIP 68833 |
27.53 |
| 2026-02-24 00:00 |
14:05:29.81 |
-18:32:25.6 |
HIP 68833 |
27.66 |