ASTROSAT CZTI

Data Quality Report

Orbit 23610

Creation date: 2024-06-27T18:56:47.048644
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/AS1T03_178T01_9000003488_23610cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23610cztM0_level2_quad_clean.evt
Size (bytes)467,945,28065,908,800
Size446.3 MB 62.9 MB
Events in quadrant A2,850,426414,655
Events in quadrant B4,289,991386,996
Events in quadrant C3,035,612408,672
Events in quadrant D3,610,202388,426

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130911284
B0189792846
C0137301451
D0163172008

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012812
B012915
C012812
D012613

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5710661.155867%
B561471212.682579%
C56911172.055878%
D56711202.116029%

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 7435 5885 0 0 0.00% 0.00%
B 7439 5752 357 357 4.80% 6.21%
C 7443 5887 0 0 0.00% 0.00%
D 7435 5860 60 60 0.81% 1.02%

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 13 254 8832 54.6 739 725 148.5
A 3 137 6349 37.88 739 725 148.5
A 0 226 6240 37.15 739 725 148.5
B 3 64 1585414 12118.86 687 669 130.8
B 12 111 15412 112.74 687 669 130.8
B 11 111 13932 101.42 687 669 130.8
C 14 238 115379 681.11 725 730 168.3
C 10 9 69494 408.51 725 730 168.3
C 7 247 8702 47.36 725 730 168.3
D 1 52 864636 4967.68 722 701 173.9
D 2 234 20060 111.32 722 701 173.9
D 10 70 16673 91.84 722 701 173.9

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