ASTROSAT CZTI

Data Quality Report

Orbit 29555

Creation date: 2024-06-27T20:05:21.942267
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/AS1A10_094T10_9000004262_29555cztM0_level2.evt modeM0/AS1A10_094T10_9000004262_29555cztM0_level2_quad_clean.evt
Size (bytes)454,380,48070,153,920
Size433.3 MB 66.9 MB
Events in quadrant A2,183,065467,921
Events in quadrant B2,240,513481,909
Events in quadrant C2,344,504446,980
Events in quadrant D6,684,781407,811

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093771
B095631
C098041
D0230841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A454180.176173%
B4541170.374367%
C45411924.228144%
D45414479.843647%

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 5676 4542 0 0 0.00% 0.00%
B 5676 4542 2 2 0.04% 0.04%
C 5676 4542 0 0 0.00% 0.00%
D 5676 4542 434 434 7.65% 9.56%

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 14848 125.85 559 547 113.6
A 13 254 9228 76.4 559 547 113.6
A 3 137 5594 44.42 559 547 113.6
B 0 230 14718 133.42 559 545 106.2
B 12 111 12665 114.09 559 545 106.2
B 11 111 11482 102.96 559 545 106.2
C 14 238 137394 1105.2 528 532 123.8
C 14 254 70759 567.1 528 532 123.8
C 3 233 57250 458.02 528 532 123.8
D 8 195 4453722 35697.83 525 511 124.7
D 13 153 68189 542.52 525 511 124.7
D 2 250 48581 385.34 525 511 124.7

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