ASTROSAT CZTI

Data Quality Report

Orbit 58300

Creation date: 2026-07-07T22:18:27.044767
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/AS1A14_044T03_9000006588_58300cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58300cztM0_level2_quad_clean.evt
Size (bytes)694,529,28084,934,080
Size662.4 MB 81.0 MB
Events in quadrant A3,431,871639,970
Events in quadrant B13,096,952295,453
Events in quadrant C4,454,191578,416
Events in quadrant D4,193,850579,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01533699
B044145513
C01839879
D01699258

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6861861.253462%
B6823428062.729005%
C68585017.305337%
D6871670.975113%

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 6930 6886 58 58 0.84% 0.84%
B 6930 6839 3775 3775 54.47% 55.20%
C 6930 6886 404 404 5.83% 5.87%
D 6930 6892 60 60 0.87% 0.87%

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 7 237 223941 1209.09 739 720 184.6
A 2 143 91133 489.73 739 720 184.6
A 12 114 85376 458.54 739 720 184.6
B 10 128 9179227 84265.79 506 489 108.9
B 3 238 1393409 12787.76 506 489 108.9
B 4 206 202403 1853.68 506 489 108.9
C 4 5 514123 2680.84 695 691 191.5
C 8 208 482204 2514.18 695 691 191.5
C 8 7 316852 1650.81 695 691 191.5
D 11 129 515575 2505.41 721 688 205.5
D 2 249 205486 996.54 721 688 205.5
D 12 110 127607 617.58 721 688 205.5

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