ASTROSAT CZTI

Data Quality Report

Orbit 53184

Creation date: 2025-07-29T12:59:38.742035
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/AS1C09_011T06_9000006490_53184cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53184cztM0_level2_quad_clean.evt
Size (bytes)1,060,672,32075,983,040
Size1011.5 MB 72.5 MB
Events in quadrant A5,592,467628,708
Events in quadrant B4,160,555687,973
Events in quadrant C10,331,239451,059
Events in quadrant D18,625,17234,095

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219110
B0176360
C0356290
D0603044

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71564736.609838%
B71563074.290106%
C7157230132.150342%
D7156682795.402459%

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 7156 7156 376 376 5.25% 5.25%
B 7156 7156 244 244 3.41% 3.41%
C 7157 7157 2287 2287 31.95% 31.95%
D 7156 7156 6837 6837 95.54% 95.54%

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 12 80 902800 5120.28 709 688 176.2
A 7 206 650817 3690.05 709 688 176.2
A 3 62 531929 3015.26 709 688 176.2
B 2 249 794678 5262.16 707 682 150.9
B 7 128 134574 887.36 707 682 150.9
B 5 185 82618 543.03 707 682 150.9
C 0 240 3153681 18811.13 609 604 167.6
C 1 241 2393121 14273.66 609 604 167.6
C 15 224 1588299 9472.13 609 604 167.6
D 15 125 15854926 180623.04 297 282 87.8
D 3 12 953709 10861.86 297 282 87.8
D 2 62 151809 1726.26 297 282 87.8

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