メタデータ
| 項目 |
値 |
| Designation |
P/2022 R1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-10-12T05:04:08.492160Z |
| Orbit solution date (soln_date, UTC) |
2024-06-21T13:42:19Z |
| Obs used |
50 |
| NEO |
- |
| M1 |
15.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-01T08:30:18.777600Z |
| Discovery magnitude (MPC) |
20.80 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2022-12-12.0000000 |
| e |
0.50312159 |
| q (au) |
3.569380 |
| a (au) |
7.183609 |
| i (deg) |
7.408376 |
| Ω (om, deg) |
176.174861 |
| ω (w, deg) |
222.612489 |
| M (ma, deg) |
344.427252 |
等級
散乱 + 全体線形
$$
M_a = (14.019 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.019 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
10.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
10:26:20.36 |
+07:02:48.1 |
HIP 51058 |
12.72 |
| 2026-09-20 12:00 |
10:26:38.44 |
+07:01:08.2 |
HIP 51058 |
14.12 |
| 2026-09-21 00:00 |
10:26:56.48 |
+06:59:28.4 |
HIP 51195 |
15.31 |
| 2026-09-21 12:00 |
10:27:14.47 |
+06:57:48.7 |
HIP 51195 |
15.42 |
| 2026-09-22 00:00 |
10:27:32.43 |
+06:56:09.1 |
HIP 51254 |
15.34 |
| 2026-09-22 12:00 |
10:27:50.34 |
+06:54:29.7 |
HIP 51254 |
11.57 |
| 2026-09-23 00:00 |
10:28:08.20 |
+06:52:50.4 |
HIP 51254 |
8.80 |
| 2026-09-23 12:00 |
10:28:26.02 |
+06:51:11.2 |
HIP 51254 |
8.11 |
| 2026-09-24 00:00 |
10:28:43.79 |
+06:49:32.1 |
HIP 51254 |
9.93 |
| 2026-09-24 12:00 |
10:29:01.52 |
+06:47:53.2 |
HIP 51254 |
13.25 |
| 2026-09-25 00:00 |
10:29:19.20 |
+06:46:14.4 |
HIP 51254 |
17.21 |
| 2026-09-25 12:00 |
10:29:36.83 |
+06:44:35.8 |
HIP 51458 |
16.34 |
| 2026-09-26 00:00 |
10:29:54.42 |
+06:42:57.3 |
HIP 51458 |
11.70 |
| 2026-09-26 12:00 |
10:30:11.96 |
+06:41:18.9 |
HIP 51458 |
7.11 |
| 2026-09-27 00:00 |
10:30:29.45 |
+06:39:40.8 |
HIP 51458 |
2.72 |
| 2026-09-27 12:00 |
10:30:46.89 |
+06:38:02.7 |
HIP 51458 |
2.70 |
| 2026-09-28 00:00 |
10:31:04.28 |
+06:36:24.9 |
HIP 51505 |
0.88 |
| 2026-09-28 12:00 |
10:31:21.62 |
+06:34:47.2 |
HIP 51522 |
1.20 |
| 2026-09-29 00:00 |
10:31:38.91 |
+06:33:09.7 |
HIP 51522 |
5.01 |
| 2026-09-29 12:00 |
10:31:56.14 |
+06:31:32.3 |
HIP 51522 |
9.52 |
| 2026-09-30 00:00 |
10:32:13.33 |
+06:29:55.1 |
HIP 51522 |
14.06 |
| 2026-09-30 12:00 |
10:32:30.47 |
+06:28:18.1 |
HIP 51667 |
13.75 |
| 2026-10-01 00:00 |
10:32:47.55 |
+06:26:41.3 |
HIP 51667 |
9.26 |
| 2026-10-01 12:00 |
10:33:04.58 |
+06:25:04.7 |
HIP 51667 |
4.85 |
| 2026-10-02 00:00 |
10:33:21.55 |
+06:23:28.3 |
HIP 51667 |
1.55 |
| 2026-10-02 12:00 |
10:33:38.47 |
+06:21:52.1 |
HIP 51667 |
4.68 |
| 2026-10-03 00:00 |
10:33:55.34 |
+06:20:16.1 |
HIP 51667 |
9.03 |
| 2026-10-03 12:00 |
10:34:12.15 |
+06:18:40.3 |
HIP 51667 |
13.46 |
| 2026-10-04 00:00 |
10:34:28.90 |
+06:17:04.7 |
HIP 51667 |
17.89 |
| 2026-10-04 12:00 |
10:34:45.59 |
+06:15:29.4 |
HIP 51667 |
22.32 |
| 2026-10-05 00:00 |
10:35:02.23 |
+06:13:54.2 |
HIP 51829 |
25.83 |
| 2026-10-05 12:00 |
10:35:18.81 |
+06:12:19.3 |
HIP 51829 |
23.90 |
| 2026-10-06 00:00 |
10:35:35.33 |
+06:10:44.6 |
HIP 51829 |
22.67 |
| 2026-10-06 12:00 |
10:35:51.79 |
+06:09:10.2 |
HIP 51829 |
22.26 |
| 2026-10-07 00:00 |
10:36:08.20 |
+06:07:36.0 |
HIP 51829 |
22.70 |
| 2026-10-07 12:00 |
10:36:24.54 |
+06:06:02.1 |
HIP 51829 |
23.94 |
| 2026-10-08 00:00 |
10:36:40.81 |
+06:04:28.4 |
HIP 51829 |
25.85 |
| 2026-10-08 12:00 |
10:36:57.03 |
+06:02:54.9 |
HIP 52075 |
23.93 |
| 2026-10-09 00:00 |
10:37:13.18 |
+06:01:21.8 |
HIP 52075 |
19.63 |
| 2026-10-09 12:00 |
10:37:29.27 |
+05:59:48.9 |
HIP 52075 |
15.34 |
| 2026-10-10 00:00 |
10:37:45.30 |
+05:58:16.3 |
HIP 52075 |
11.07 |
| 2026-10-10 12:00 |
10:38:01.26 |
+05:56:43.9 |
HIP 52075 |
6.83 |
| 2026-10-11 00:00 |
10:38:17.15 |
+05:55:11.9 |
HIP 52075 |
2.63 |