ASTROSAT CZTI

Data Quality Report

Orbit 22360

Creation date: 2024-06-27T18:39:47.351206
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/AS1A07_007T04_9000003310_22360cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22360cztM0_level2_quad_clean.evt
Size (bytes)463,216,32094,507,200
Size441.8 MB 90.1 MB
Events in quadrant A3,085,592618,305
Events in quadrant B3,795,255612,376
Events in quadrant C3,133,281602,958
Events in quadrant D3,579,918582,263

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134712
B0156693
C0134712
D0152462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394410.641226%
B63932433.801032%
C6393811.267011%
D63931402.189895%

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 7499 6394 0 0 0.00% 0.00%
B 7498 6393 168 168 2.24% 2.63%
C 7498 6393 0 0 0.00% 0.00%
D 7498 6393 92 92 1.23% 1.44%

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 3 1 34991 216.54 792 775 158.0
A 13 254 8819 50.91 792 775 158.0
A 3 137 6769 37.93 792 775 158.0
B 3 64 669062 4541.63 781 762 147.1
B 0 190 31176 206.69 781 762 147.1
B 0 229 21030 137.74 781 762 147.1
C 14 238 121208 674.19 768 773 178.6
C 0 10 9758 50.3 768 773 178.6
C 10 1 7779 39.22 768 773 178.6
D 1 52 328178 1744.65 774 752 187.7
D 7 38 170796 906.06 774 752 187.7
D 12 227 93530 494.36 774 752 187.7

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