ASTROSAT CZTI

Data Quality Report

Orbit 14473

Creation date: 2024-06-27T16:55:38.680073
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/AS1A04_222T01_9000002132_14473cztM0_level2.evt modeM0/AS1A04_222T01_9000002132_14473cztM0_level2_quad_clean.evt
Size (bytes)401,532,480116,187,840
Size382.9 MB 110.8 MB
Events in quadrant A2,727,323777,340
Events in quadrant B3,128,297799,473
Events in quadrant C2,836,014792,654
Events in quadrant D3,080,174750,153

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118482
B0131192
C0121292
D0130422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5708160.280308%
B5708581.016118%
C5708110.192712%
D5708991.734408%

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 7054 5710 1 1 0.01% 0.02%
B 7054 5710 15 15 0.21% 0.26%
C 7054 5709 0 0 0.00% 0.00%
D 7054 5709 81 81 1.15% 1.42%

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 12 189 43686 311.36 690 677 138.1
A 8 15 12818 87.89 690 677 138.1
A 9 143 7879 52.13 690 677 138.1
B 0 189 178538 1366.82 700 684 130.1
B 15 222 99649 760.55 700 684 130.1
B 0 219 47471 359.56 700 684 130.1
C 3 233 127388 816.64 682 685 155.2
C 0 207 38941 246.57 682 685 155.2
C 7 247 7860 46.25 682 685 155.2
D 12 110 280701 1678.12 666 649 166.9
D 10 199 137194 818.2 666 649 166.9
D 15 0 41396 244.16 666 649 166.9

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