ASTROSAT CZTI

Data Quality Report

Orbit 23632

Creation date: 2024-06-27T18:57:00.881956
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_147T01_9000003490_23632cztM0_level2.evt modeM0/AS1A07_147T01_9000003490_23632cztM0_level2_quad_clean.evt
Size (bytes)520,174,08090,567,360
Size496.1 MB 86.4 MB
Events in quadrant A3,260,668571,835
Events in quadrant B4,110,771582,201
Events in quadrant C3,404,156565,439
Events in quadrant D4,515,863548,569

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141462
B0168452
C0143762
D0181112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6811450.660696%
B68112042.995155%
C6811961.409485%
D68112834.155043%

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 8621 6811 0 0 0.00% 0.00%
B 8621 6811 81 81 0.94% 1.19%
C 8621 6811 1 1 0.01% 0.01%
D 8621 6811 198 198 2.30% 2.91%

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 13 254 11180 60.03 843 825 172.5
A 12 96 9428 49.87 843 825 172.5
A 3 137 7665 39.65 843 825 172.5
B 3 64 504844 3145.26 837 816 160.3
B 0 230 153848 954.96 837 816 160.3
B 0 229 71569 441.52 837 816 160.3
C 14 238 129603 670.42 818 825 192.1
C 7 247 52875 270.97 818 825 192.1
C 14 225 19656 98.03 818 825 192.1
D 9 85 542807 2728.33 812 786 198.7
D 12 233 376099 1889.18 812 786 198.7
D 1 52 180205 903.13 812 786 198.7

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