ASTROSAT CZTI

Data Quality Report

Orbit 53983

Creation date: 2025-09-20T11:02:57.583416
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_041T01_9000006510_53983cztM0_level2.fits modeM0/AS1A14_041T01_9000006510_53983cztM0_level2_quad_clean.evt
Size (bytes)799,856,64098,562,240
Size762.8 MB 94.0 MB
Events in quadrant A4,339,438727,156
Events in quadrant B4,119,791797,114
Events in quadrant C3,866,651711,569
Events in quadrant D16,664,425195,936

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189670
B0181470
C0175220
D0550000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79482292.881228%
B79492092.629262%
C7949981.232859%
D7948581673.175642%

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 7948 7948 166 166 2.09% 2.09%
B 7949 7949 124 124 1.56% 1.56%
C 7949 7949 60 60 0.75% 0.75%
D 7947 7947 5297 5297 66.65% 66.65%

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 15 174 717055 3552.8 819 798 201.6
A 0 8 224117 1107.71 819 798 201.6
A 7 14 63588 311.45 819 798 201.6
B 5 185 422811 2372.21 826 797 177.9
B 0 213 169666 949.24 826 797 177.9
B 5 172 90297 503.09 826 797 177.9
C 12 249 177205 787.36 810 798 224.1
C 15 209 133193 590.92 810 798 224.1
C 12 252 70120 309.4 810 798 224.1
D 8 176 13566958 108150.28 433 413 125.4
D 2 165 527585 4202.53 433 413 125.4
D 3 12 313939 2499.38 433 413 125.4

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