Observation information
- date-obs: 2020-08-14
- time-obs: 01:17:50.565400000
- date-end: 2020-08-14
- time-end: 03:43:58.559000000
- obs_id: A09_088T01_9000003812
- exposure: 4890.06827272
- sourceid: NGC 1261
- observer: sharmila
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_088T01_9000003812_26376cztM0_level2.evt
| modeM0/AS1A09_088T01_9000003812_26376cztM0_level2_quad_clean.evt
|
| Size (bytes) | 961,369,920 | 98,372,160 |
| Size | 916.8 MB
| 93.8 MB
|
| Events in quadrant A | 3,486,126 | 700,522 |
| Events in quadrant B | 3,284,688 | 727,919 |
| Events in quadrant C | 10,953,326 | 542,271 |
| Events in quadrant D | 10,924,507 | 524,137 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14922 | 0 |
| B | 0 | 14183 | 0 |
| C | 0 | 37431 | 0 |
| D | 0 | 37203 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6924 | 96 | 1.386482% |
| B | 6924 | 32 | 0.462161% |
| C | 6923 | 3198 | 46.193847% |
| D | 6923 | 2889 | 41.730464% |
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 | 8769 | 6926 | 41 | 41 | 0.47% | 0.59% |  |
| B | 8769 | 6926 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8768 | 6924 | 1967 | 1967 | 22.43% | 28.41% |  |
| D | 8768 | 6924 | 2294 | 2294 | 26.16% | 33.13% |  |
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 | 13 | 291263 | 1754.17 | 826 | 808 | 165.6 |
| A | 13 | 254 | 11615 | 65.27 | 826 | 808 | 165.6 |
| A | 3 | 137 | 7624 | 41.16 | 826 | 808 | 165.6 |
| B | 0 | 230 | 21560 | 132.13 | 833 | 813 | 157.0 |
| B | 12 | 111 | 19138 | 116.71 | 833 | 813 | 157.0 |
| B | 11 | 111 | 16877 | 102.31 | 833 | 813 | 157.0 |
| C | 3 | 233 | 8220177 | 52481.53 | 670 | 674 | 156.6 |
| C | 14 | 238 | 105029 | 666.31 | 670 | 674 | 156.6 |
| C | 2 | 16 | 16504 | 101.07 | 670 | 674 | 156.6 |
| D | 1 | 52 | 4924363 | 32197.18 | 646 | 631 | 152.9 |
| D | 7 | 80 | 3394169 | 22190.96 | 646 | 631 | 152.9 |
| D | 11 | 176 | 64521 | 417.79 | 646 | 631 | 152.9 |
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 |  |