Observation information
- date-obs: 2018-02-03
- time-obs: 12:35:50.960300000
- date-end: 2018-02-03
- time-end: 14:36:16.957500000
- obs_id: A04_174T01_9000001876
- exposure: 4659.1520617
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12721cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12721cztM0_level2_quad_clean.evt
|
| Size (bytes) | 523,537,920 | 110,004,480 |
| Size | 499.3 MB
| 104.9 MB
|
| Events in quadrant A | 3,526,049 | 763,925 |
| Events in quadrant B | 5,449,070 | 683,520 |
| Events in quadrant C | 3,200,740 | 744,283 |
| Events in quadrant D | 3,272,401 | 720,519 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14319 | 2 |
| B | 0 | 20360 | 1 |
| C | 0 | 13200 | 1 |
| D | 0 | 13541 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6001 | 89 | 1.483086% |
| B | 6001 | 913 | 15.214131% |
| C | 6001 | 62 | 1.033161% |
| D | 6001 | 99 | 1.649725% |
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 | 7227 | 6003 | 19 | 19 | 0.26% | 0.32% |  |
| B | 7227 | 6003 | 691 | 691 | 9.56% | 11.51% |  |
| C | 7227 | 6003 | 23 | 23 | 0.32% | 0.38% |  |
| D | 7227 | 6003 | 41 | 41 | 0.57% | 0.68% |  |
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 | 15 | 239 | 234143 | 1441.21 | 801 | 788 | 161.9 |
| A | 8 | 15 | 76229 | 465.93 | 801 | 788 | 161.9 |
| A | 11 | 29 | 56045 | 341.27 | 801 | 788 | 161.9 |
| B | 4 | 239 | 2259943 | 16420.59 | 730 | 715 | 137.6 |
| B | 0 | 219 | 176677 | 1278.93 | 730 | 715 | 137.6 |
| B | 3 | 64 | 96744 | 697.96 | 730 | 715 | 137.6 |
| C | 15 | 208 | 218265 | 1241.38 | 761 | 769 | 175.2 |
| C | 14 | 234 | 15962 | 86.72 | 761 | 769 | 175.2 |
| C | 13 | 61 | 5384 | 26.34 | 761 | 769 | 175.2 |
| D | 13 | 104 | 170255 | 929.1 | 766 | 750 | 182.4 |
| D | 1 | 52 | 101445 | 551.93 | 766 | 750 | 182.4 |
| D | 9 | 85 | 36034 | 193.4 | 766 | 750 | 182.4 |
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 |  |