Observation information
- date-obs: 2017-05-15
- time-obs: 01:07:28.561700000
- date-end: 2017-05-15
- time-end: 03:16:09.059200000
- obs_id: A03_135T01_9000001226
- exposure: 4254.03529449
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08806cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08806cztM0_level2_quad_clean.evt
|
| Size (bytes) | 530,009,280 | 85,835,520 |
| Size | 505.5 MB
| 81.9 MB
|
| Events in quadrant A | 3,889,248 | 530,824 |
| Events in quadrant B | 3,722,728 | 526,653 |
| Events in quadrant C | 3,234,630 | 521,789 |
| Events in quadrant D | 4,707,128 | 509,649 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16171 | 2 |
| B | 0 | 16017 | 8 |
| C | 0 | 14885 | 5 |
| D | 0 | 19047 | 20 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7336 | 50 | 0.681570% |
| B | 7334 | 143 | 1.949823% |
| C | 7334 | 30 | 0.409054% |
| D | 7331 | 273 | 3.723912% |
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 | 7721 | 7336 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7721 | 7336 | 72 | 72 | 0.93% | 0.98% |  |
| C | 7721 | 7336 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7721 | 7336 | 261 | 261 | 3.38% | 3.56% |  |
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 | 8 | 5 | 529486 | 3028.91 | 854 | 836 | 174.5 |
| A | 13 | 251 | 33564 | 187.52 | 854 | 836 | 174.5 |
| A | 13 | 248 | 28390 | 157.87 | 854 | 836 | 174.5 |
| B | 10 | 16 | 330142 | 1985.9 | 854 | 834 | 165.8 |
| B | 0 | 214 | 32250 | 189.45 | 854 | 834 | 165.8 |
| B | 12 | 111 | 17828 | 102.48 | 854 | 834 | 165.8 |
| C | 1 | 16 | 7573 | 35.17 | 823 | 828 | 191.8 |
| C | 13 | 61 | 6295 | 28.51 | 823 | 828 | 191.8 |
| C | 8 | 128 | 5104 | 22.3 | 823 | 828 | 191.8 |
| D | 2 | 14 | 769895 | 3615.87 | 808 | 787 | 212.7 |
| D | 2 | 16 | 550609 | 2584.92 | 808 | 787 | 212.7 |
| D | 2 | 152 | 133462 | 623.76 | 808 | 787 | 212.7 |
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 |  |