ASTROSAT CZTI

Data Quality Report

Orbit 10768

Creation date: 2024-06-27T16:03:45.112757
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_057T03_9000001552_10768cztM0_level2.evt modeM0/AS1G07_057T03_9000001552_10768cztM0_level2_quad_clean.evt
Size (bytes)531,420,480119,995,200
Size506.8 MB 114.4 MB
Events in quadrant A3,146,132816,790
Events in quadrant B5,381,936791,390
Events in quadrant C2,847,436834,807
Events in quadrant D4,316,710776,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132032
B0198881
C0121961
D0171261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59201322.229730%
B592087314.746622%
C5920560.945946%
D59202223.750000%

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 7220 5921 36 36 0.50% 0.61%
B 7220 5920 561 561 7.77% 9.48%
C 7220 5921 0 0 0.00% 0.00%
D 7220 5921 152 152 2.11% 2.57%

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 15 223 135397 918.4 734 721 146.6
A 15 239 66969 451.77 734 721 146.6
A 15 174 50544 339.76 734 721 146.6
B 0 85 1669064 12719.44 709 692 131.2
B 4 239 778995 5933.67 709 692 131.2
B 15 204 117926 893.78 709 692 131.2
C 13 61 5498 28.76 728 730 165.8
C 8 222 3386 16.02 728 730 165.8
C 5 207 3292 15.45 728 730 165.8
D 10 199 584599 3409.47 718 699 171.3
D 10 157 357968 2086.14 718 699 171.3
D 8 195 174711 1016.08 718 699 171.3

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