| Parameter |
Value |
| Designation |
C/2025 L2 (MAPS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-12-20T15:54:24.071040Z |
| Orbit solution date (soln_date, UTC) |
2026-05-05T09:12:15Z |
| Obs used |
376 |
| NEO |
- |
| M1 |
10.500 |
| K1 |
11.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-06-02T07:22:26.400000Z |
| Discovery magnitude (MPC) |
18.70 G |
| Discovery observatory (MPC) |
W94 · MAPS, San Pedro de Atacama |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2025-08-31.0000000 |
| e |
0.99440208 |
| q (au) |
2.833647 |
| a (au) |
506.196730 |
| i (deg) |
86.582701 |
| Ω (om, deg) |
134.985001 |
| ω (w, deg) |
232.642954 |
| M (ma, deg) |
359.990337 |
Magnitude
Scatter + Global Linear
$$
M_a = (9.092 + 5.136\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
9.092 |
| n |
5.136 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
05:36:32.72 |
-44:22:12.2 |
HIP 26423 |
17.49 |
| 2026-06-01 12:00 |
05:37:44.61 |
-44:16:54.5 |
HIP 26507 |
12.57 |
| 2026-06-02 00:00 |
05:38:56.24 |
-44:11:38.3 |
HIP 26586 |
5.22 |
| 2026-06-02 12:00 |
05:40:07.59 |
-44:06:23.6 |
HIP 26586 |
11.33 |
| 2026-06-03 00:00 |
05:41:18.68 |
-44:01:10.5 |
HIP 26586 |
24.71 |
| 2026-06-03 12:00 |
05:42:29.50 |
-43:55:58.9 |
HIP 26859 |
25.75 |
| 2026-06-04 00:00 |
05:43:40.05 |
-43:50:48.8 |
HIP 26859 |
26.17 |
| 2026-06-04 12:00 |
05:44:50.33 |
-43:45:40.3 |
HIP 26859 |
32.93 |
| 2026-06-05 00:00 |
05:46:00.36 |
-43:40:33.5 |
HIP 27277 |
28.72 |
| 2026-06-05 12:00 |
05:47:10.11 |
-43:35:28.2 |
HIP 27277 |
22.44 |
| 2026-06-06 00:00 |
05:48:19.61 |
-43:30:24.6 |
HIP 27532 |
18.68 |
| 2026-06-06 12:00 |
05:49:28.84 |
-43:25:22.6 |
HIP 27532 |
5.35 |
| 2026-06-07 00:00 |
05:50:37.81 |
-43:20:22.3 |
HIP 27532 |
8.62 |
| 2026-06-07 12:00 |
05:51:46.52 |
-43:15:23.7 |
HIP 27767 |
12.50 |
| 2026-06-08 00:00 |
05:52:54.96 |
-43:10:26.8 |
HIP 27767 |
5.69 |
| 2026-06-08 12:00 |
05:54:03.15 |
-43:05:31.7 |
HIP 27835 |
12.62 |
| 2026-06-09 00:00 |
05:55:11.09 |
-43:00:38.3 |
HIP 27974 |
13.49 |
| 2026-06-09 12:00 |
05:56:18.76 |
-42:55:46.6 |
HIP 27974 |
16.86 |
| 2026-06-10 00:00 |
05:57:26.18 |
-42:50:56.7 |
HIP 28328 |
18.92 |
| 2026-06-10 12:00 |
05:58:33.34 |
-42:46:08.7 |
HIP 28328 |
7.07 |
| 2026-06-11 00:00 |
05:59:40.25 |
-42:41:22.4 |
HIP 28328 |
9.49 |
| 2026-06-11 12:00 |
06:00:46.90 |
-42:36:38.0 |
HIP 28451 |
8.93 |
| 2026-06-12 00:00 |
06:01:53.30 |
-42:31:55.4 |
HIP 28451 |
16.34 |
| 2026-06-12 12:00 |
06:02:59.45 |
-42:27:14.7 |
HIP 28838 |
24.91 |
| 2026-06-13 00:00 |
06:04:05.34 |
-42:22:35.8 |
HIP 28838 |
13.75 |
| 2026-06-13 12:00 |
06:05:10.98 |
-42:17:58.9 |
HIP 28838 |
9.76 |
| 2026-06-14 00:00 |
06:06:16.37 |
-42:13:23.9 |
HIP 28957 |
6.43 |
| 2026-06-14 12:00 |
06:07:21.51 |
-42:08:50.7 |
HIP 29064 |
5.83 |
| 2026-06-15 00:00 |
06:08:26.40 |
-42:04:19.6 |
HIP 29064 |
7.93 |
| 2026-06-15 12:00 |
06:09:31.04 |
-41:59:50.3 |
HIP 29217 |
1.88 |
| 2026-06-16 00:00 |
06:10:35.43 |
-41:55:23.0 |
HIP 29217 |
10.94 |
| 2026-06-16 12:00 |
06:11:39.57 |
-41:50:57.7 |
HIP 29374 |
16.38 |
| 2026-06-17 00:00 |
06:12:43.46 |
-41:46:34.4 |
HIP 29517 |
11.06 |
| 2026-06-17 12:00 |
06:13:47.10 |
-41:42:13.0 |
HIP 29593 |
5.31 |
| 2026-06-18 00:00 |
06:14:50.50 |
-41:37:53.7 |
HIP 29593 |
7.40 |
| 2026-06-18 12:00 |
06:15:53.64 |
-41:33:36.3 |
HIP 29772 |
5.59 |
| 2026-06-19 00:00 |
06:16:56.55 |
-41:29:21.0 |
HIP 29818 |
3.21 |
| 2026-06-19 12:00 |
06:17:59.20 |
-41:25:07.6 |
HIP 29818 |
15.27 |
| 2026-06-20 00:00 |
06:19:01.61 |
-41:20:56.3 |
HIP 30024 |
16.49 |
| 2026-06-20 12:00 |
06:20:03.78 |
-41:16:47.1 |
HIP 30024 |
16.50 |
| 2026-06-21 00:00 |
06:21:05.70 |
-41:12:39.8 |
HIP 30192 |
20.56 |
| 2026-06-21 12:00 |
06:22:07.38 |
-41:08:34.6 |
HIP 30260 |
15.86 |
| 2026-06-22 00:00 |
06:23:08.82 |
-41:04:31.4 |
HIP 30260 |
17.91 |