ASTROSAT CZTI

Data Quality Report

Orbit 43332

Creation date: 2024-06-27T22:50:43.677920
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/AS1T05_158T01_9000005868_43332cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43332cztM0_level2_quad_clean.evt
Size (bytes)302,270,40086,434,560
Size288.3 MB 82.4 MB
Events in quadrant A3,012,754575,235
Events in quadrant B2,528,359591,762
Events in quadrant C2,550,225569,856
Events in quadrant D2,691,654515,767

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119222
B0108543
C0106502
D0116692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5207591.133090%
B5206430.825970%
C520660.115252%
D5206851.632731%

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 7091 5208 51 51 0.72% 0.98%
B 7090 5207 34 34 0.48% 0.65%
C 7090 5207 6 6 0.08% 0.12%
D 7090 5207 70 70 0.99% 1.34%

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 551634 4504.01 587 573 122.3
A 15 237 182222 1484.68 587 573 122.3
A 13 6 7095 53.3 587 573 122.3
B 5 172 112270 984.73 580 563 113.4
B 0 189 74639 653.0 580 563 113.4
B 0 245 55538 484.62 580 563 113.4
C 15 214 220646 1619.01 576 579 135.9
C 12 2 33863 244.87 576 579 135.9
C 2 16 21929 157.07 576 579 135.9
D 12 6 153130 1081.31 572 554 141.1
D 13 249 150792 1064.74 572 554 141.1
D 7 96 142636 1006.94 572 554 141.1

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