메타데이터
| 항목 |
값 |
| Designation |
343P/NEAT-LONEOS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-01-27T05:13:16.026240Z |
| Orbit solution date (soln_date, UTC) |
2024-08-11T00:12:24Z |
| Obs used |
324 |
| NEO |
- |
| M1 |
5.600 |
| K1 |
29.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-10-15.0000000 |
| e |
0.58417160 |
| q (au) |
2.276535 |
| a (au) |
5.474699 |
| i (deg) |
5.584452 |
| Ω (om, deg) |
257.265816 |
| ω (w, deg) |
137.584514 |
| M (ma, deg) |
267.652804 |
밝기
산란 + 전체 선형
$$
M_a = (10.056 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.056 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2016-06-11 |
2017-01-23 |
+9.4520 |
-3.557 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
15:48:07.34 |
-21:03:58.3 |
HIP 77360 |
13.10 |
| 2026-07-29 12:00 |
15:48:04.76 |
-21:03:39.0 |
HIP 77360 |
12.98 |
| 2026-07-30 00:00 |
15:48:02.32 |
-21:03:20.1 |
HIP 77360 |
12.91 |
| 2026-07-30 12:00 |
15:48:00.04 |
-21:03:01.6 |
HIP 77360 |
12.88 |
| 2026-07-31 00:00 |
15:47:57.90 |
-21:02:43.6 |
HIP 77360 |
12.89 |
| 2026-07-31 12:00 |
15:47:55.91 |
-21:02:26.1 |
HIP 77360 |
12.93 |
| 2026-08-01 00:00 |
15:47:54.06 |
-21:02:09.0 |
HIP 77360 |
13.00 |
| 2026-08-01 12:00 |
15:47:52.36 |
-21:01:52.4 |
HIP 77360 |
13.10 |
| 2026-08-02 00:00 |
15:47:50.81 |
-21:01:36.3 |
HIP 77360 |
13.22 |
| 2026-08-02 12:00 |
15:47:49.41 |
-21:01:20.6 |
HIP 77360 |
13.36 |
| 2026-08-03 00:00 |
15:47:48.15 |
-21:01:05.4 |
HIP 77360 |
13.52 |
| 2026-08-03 12:00 |
15:47:47.04 |
-21:00:50.6 |
HIP 77360 |
13.68 |
| 2026-08-04 00:00 |
15:47:46.08 |
-21:00:36.3 |
HIP 77360 |
13.85 |
| 2026-08-04 12:00 |
15:47:45.26 |
-21:00:22.5 |
HIP 77360 |
14.03 |
| 2026-08-05 00:00 |
15:47:44.59 |
-21:00:09.2 |
HIP 77360 |
14.21 |
| 2026-08-05 12:00 |
15:47:44.07 |
-20:59:56.3 |
HIP 77360 |
14.39 |
| 2026-08-06 00:00 |
15:47:43.70 |
-20:59:43.9 |
HIP 77360 |
14.58 |
| 2026-08-06 12:00 |
15:47:43.47 |
-20:59:31.9 |
HIP 77360 |
14.76 |
| 2026-08-07 00:00 |
15:47:43.39 |
-20:59:20.5 |
HIP 77360 |
14.95 |
| 2026-08-07 12:00 |
15:47:43.46 |
-20:59:09.5 |
HIP 77360 |
15.13 |
| 2026-08-08 00:00 |
15:47:43.68 |
-20:58:58.9 |
HIP 77360 |
15.31 |
| 2026-08-08 12:00 |
15:47:44.04 |
-20:58:48.9 |
HIP 77360 |
15.49 |
| 2026-08-09 00:00 |
15:47:44.55 |
-20:58:39.3 |
HIP 77360 |
15.67 |
| 2026-08-09 12:00 |
15:47:45.21 |
-20:58:30.2 |
HIP 77360 |
15.85 |
| 2026-08-10 00:00 |
15:47:46.02 |
-20:58:21.6 |
HIP 77360 |
16.03 |
| 2026-08-10 12:00 |
15:47:46.98 |
-20:58:13.4 |
HIP 77360 |
16.21 |
| 2026-08-11 00:00 |
15:47:48.08 |
-20:58:05.7 |
HIP 77360 |
16.40 |
| 2026-08-11 12:00 |
15:47:49.33 |
-20:57:58.5 |
HIP 77360 |
16.59 |
| 2026-08-12 00:00 |
15:47:50.73 |
-20:57:51.8 |
HIP 77360 |
16.78 |
| 2026-08-12 12:00 |
15:47:52.27 |
-20:57:45.5 |
HIP 77360 |
16.98 |
| 2026-08-13 00:00 |
15:47:53.96 |
-20:57:39.7 |
HIP 77360 |
17.19 |
| 2026-08-13 12:00 |
15:47:55.80 |
-20:57:34.4 |
HIP 77360 |
17.41 |
| 2026-08-14 00:00 |
15:47:57.78 |
-20:57:29.5 |
HIP 77360 |
17.65 |
| 2026-08-14 12:00 |
15:47:59.92 |
-20:57:25.2 |
HIP 77360 |
17.89 |
| 2026-08-15 00:00 |
15:48:02.19 |
-20:57:21.3 |
HIP 77360 |
18.16 |
| 2026-08-15 12:00 |
15:48:04.62 |
-20:57:17.8 |
HIP 77360 |
18.44 |
| 2026-08-16 00:00 |
15:48:07.18 |
-20:57:14.8 |
HIP 77360 |
18.75 |
| 2026-08-16 12:00 |
15:48:09.90 |
-20:57:12.3 |
HIP 77360 |
19.08 |
| 2026-08-17 00:00 |
15:48:12.76 |
-20:57:10.3 |
HIP 77360 |
19.43 |
| 2026-08-17 12:00 |
15:48:15.76 |
-20:57:08.7 |
HIP 77360 |
19.81 |
| 2026-08-18 00:00 |
15:48:18.91 |
-20:57:07.5 |
HIP 77360 |
20.22 |
| 2026-08-18 12:00 |
15:48:22.20 |
-20:57:06.9 |
HIP 77360 |
20.66 |
| 2026-08-19 00:00 |
15:48:25.63 |
-20:57:06.7 |
HIP 77521 |
20.33 |