ASTROSAT CZTI

Data Quality Report

Orbit 10763

Creation date: 2024-06-27T16:03:32.823384
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/AS1G07_051T01_9000001550_10763cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10763cztM0_level2_quad_clean.evt
Size (bytes)605,134,08066,931,200
Size577.1 MB 63.8 MB
Events in quadrant A3,224,300396,633
Events in quadrant B6,503,369390,217
Events in quadrant C3,060,542398,392
Events in quadrant D5,080,543370,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140333
B0239622
C0137672
D0194652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6754500.740302%
B675489813.295825%
C6754430.636660%
D67545568.232159%

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 7649 6755 0 0 0.00% 0.00%
B 7649 6754 378 378 4.94% 5.60%
C 7649 6755 0 0 0.00% 0.00%
D 7649 6755 442 442 5.78% 6.54%

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 15 239 82323 495.13 803 785 164.7
A 1 162 15769 90.99 803 785 164.7
A 15 174 15429 88.92 803 785 164.7
B 0 85 2603094 17312.88 779 759 150.3
B 4 239 724608 4815.64 779 759 150.3
B 4 81 80449 530.16 779 759 150.3
C 13 61 5834 27.58 784 787 183.0
C 14 234 2817 11.09 784 787 183.0
C 5 207 2203 7.74 784 787 183.0
D 10 157 1383245 7531.42 755 733 183.6
D 1 52 331159 1800.04 755 733 183.6
D 8 195 171547 930.53 755 733 183.6

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