Observation information
- date-obs: 2017-02-14
- time-obs: 15:39:03.418600000
- date-end: 2017-02-14
- time-end: 17:07:02.417400000
- obs_id: A02_058T02_9000001030
- exposure: 2991.10348748
- sourceid: NGC 4262
- observer: omkar
- ra_pnt: 184.8774
- dec_pnt: 14.87772
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_058T02_9000001030_07483cztM0_level2.evt
| modeM0/AS1A02_058T02_9000001030_07483cztM0_level2_quad_clean.evt
|
| Size (bytes) | 281,286,720 | 61,447,680 |
| Size | 268.3 MB
| 58.6 MB
|
| Events in quadrant A | 1,993,427 | 393,537 |
| Events in quadrant B | 2,099,848 | 401,907 |
| Events in quadrant C | 1,989,083 | 400,613 |
| Events in quadrant D | 2,161,514 | 380,641 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8569 | 2 |
| B | 0 | 8932 | 1 |
| C | 0 | 8545 | 1 |
| D | 0 | 9193 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4019 | 96 | 2.388654% |
| B | 4019 | 116 | 2.886290% |
| C | 4019 | 88 | 2.189599% |
| D | 4019 | 125 | 3.110226% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 5279 | 4019 | 0 | 0 | 0.00% | 0.00% |  |
| B | 5279 | 4019 | 4 | 4 | 0.08% | 0.10% |  |
| C | 5279 | 4020 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5279 | 4020 | 36 | 36 | 0.68% | 0.90% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 226 | 5086 | 43.4 | 514 | 503 | 105.6 |
| A | 12 | 194 | 4553 | 38.36 | 514 | 503 | 105.6 |
| A | 8 | 15 | 3888 | 32.06 | 514 | 503 | 105.6 |
| B | 0 | 214 | 45310 | 445.12 | 520 | 507 | 100.7 |
| B | 4 | 173 | 22181 | 215.33 | 520 | 507 | 100.7 |
| B | 4 | 81 | 11063 | 104.87 | 520 | 507 | 100.7 |
| C | 13 | 61 | 3818 | 27.79 | 508 | 512 | 119.0 |
| C | 1 | 16 | 2932 | 20.34 | 508 | 512 | 119.0 |
| C | 8 | 222 | 2421 | 16.04 | 508 | 512 | 119.0 |
| D | 2 | 14 | 97723 | 786.8 | 503 | 489 | 123.6 |
| D | 12 | 233 | 54578 | 437.68 | 503 | 489 | 123.6 |
| D | 14 | 34 | 34746 | 277.2 | 503 | 489 | 123.6 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |