ASTROSAT CZTI

Data Quality Report

Orbit 44057

Creation date: 2024-06-27T22:58:51.908075
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/AS1A13_029T01_9000005940_44057cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44057cztM0_level2_quad_clean.evt
Size (bytes)527,918,400130,593,600
Size503.5 MB 124.5 MB
Events in quadrant A5,208,307874,707
Events in quadrant B3,870,037908,792
Events in quadrant C4,573,594847,843
Events in quadrant D5,253,350755,275

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208212
B0171902
C0192172
D0212322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81883704.518808%
B81883664.469956%
C81884165.080606%
D81876688.159277%

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 9198 8193 6 6 0.07% 0.07%
B 9198 8193 1 1 0.01% 0.01%
C 9198 8193 74 74 0.80% 0.90%
D 9197 8192 342 342 3.72% 4.17%

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 10 83 1315284 6509.0 974 953 201.9
A 14 238 94116 461.37 974 953 201.9
A 7 3 13358 61.43 974 953 201.9
B 12 111 25805 127.42 973 942 195.1
B 11 111 23620 116.22 973 942 195.1
B 14 111 23152 113.82 973 942 195.1
C 14 254 741140 3220.76 962 966 229.8
C 3 233 48575 207.16 962 966 229.8
C 4 254 15044 61.26 962 966 229.8
D 13 249 715899 3071.47 930 901 232.8
D 1 52 597703 2563.73 930 901 232.8
D 2 249 139717 596.32 930 901 232.8

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