ASTROSAT CZTI

Data Quality Report

Orbit 08862

Creation date: 2024-06-27T15:38:13.944266
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_028T01_9000001232_08862cztM0_level2.evt modeM0/AS1G07_028T01_9000001232_08862cztM0_level2_quad_clean.evt
Size (bytes)525,222,72095,319,360
Size500.9 MB 90.9 MB
Events in quadrant A4,237,068600,948
Events in quadrant B3,775,945600,745
Events in quadrant C3,409,478596,688
Events in quadrant D3,987,671579,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01502
B01502
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017589171
B016126146
C015247100
D016764157

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73041461.998905%
B73021111.520131%
C7320460.628415%
D7303911.246063%

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 7369 12 12 0.16% 0.16%
B 7649 7369 19 19 0.25% 0.26%
C 7649 7366 0 0 0.00% 0.00%
D 7650 7366 12 12 0.16% 0.16%

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 8 5 774560 4262.36 886 865 181.5
A 15 174 17968 94.22 886 865 181.5
A 3 1 11842 60.47 886 865 181.5
B 4 48 182950 1056.19 893 869 172.4
B 0 214 51064 291.16 893 869 172.4
B 10 16 34380 194.39 893 869 172.4
C 14 234 9020 40.21 868 872 202.6
C 13 61 6527 27.91 868 872 202.6
C 12 4 4767 19.22 868 872 202.6
D 8 195 265600 1143.48 858 836 231.5
D 13 105 258005 1110.68 858 836 231.5
D 2 14 86384 369.47 858 836 231.5

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