ASTROSAT CZTI

Data Quality Report

Orbit 42707

Creation date: 2024-06-27T22:43:17.394406
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_013T01_9000005822_42707cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42707cztM0_level2_quad_clean.evt
Size (bytes)300,890,88092,882,880
Size287.0 MB 88.6 MB
Events in quadrant A3,037,560629,764
Events in quadrant B2,502,247652,728
Events in quadrant C2,642,182611,241
Events in quadrant D2,556,401559,670

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119422
B0106692
C0106752
D0110422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5125290.565854%
B5125190.370732%
C5125100.195122%
D5125280.546341%

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 7278 5126 21 21 0.29% 0.41%
B 7278 5126 16 16 0.22% 0.31%
C 7278 5126 9 9 0.12% 0.18%
D 7278 5126 24 24 0.33% 0.47%

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 10 83 544233 4431.33 601 591 122.7
A 13 248 152075 1234.77 601 591 122.7
A 2 79 10002 76.71 601 591 122.7
B 10 246 51252 443.51 598 582 114.2
B 5 172 42136 363.72 598 582 114.2
B 5 255 34392 295.94 598 582 114.2
C 15 214 216176 1583.19 589 591 136.2
C 14 254 73045 532.08 589 591 136.2
C 3 233 39494 285.69 589 591 136.2
D 2 249 167463 1177.37 586 570 141.8
D 12 6 80574 564.4 586 570 141.8
D 2 234 23745 163.49 586 570 141.8

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