ASTROSAT CZTI

Data Quality Report

Orbit 10767

Creation date: 2024-06-27T16:03:44.376836
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_10767cztM0_level2.evt modeM0/AS1G07_057T03_9000001552_10767cztM0_level2_quad_clean.evt
Size (bytes)501,742,080118,589,760
Size478.5 MB 113.1 MB
Events in quadrant A3,038,592807,102
Events in quadrant B4,669,503794,384
Events in quadrant C2,804,650811,827
Events in quadrant D4,276,745760,308

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
A0129282
B0177531
C0122751
D0168201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5983881.470834%
B59834597.671737%
C5983300.501421%
D59831562.607388%

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 7243 5984 28 28 0.39% 0.47%
B 7243 5984 257 257 3.55% 4.29%
C 7243 5984 0 0 0.00% 0.00%
D 7243 5984 99 99 1.37% 1.65%

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 76636 527.94 728 715 143.8
A 15 174 66274 455.88 728 715 143.8
A 15 239 34564 235.38 728 715 143.8
B 4 239 846609 6376.09 714 698 132.7
B 0 85 831876 6265.04 714 698 132.7
B 15 204 116912 875.97 714 698 132.7
C 13 61 5391 28.64 716 720 163.1
C 8 222 4205 21.37 716 720 163.1
C 8 208 3641 17.91 716 720 163.1
D 10 157 496232 2937.18 706 687 168.7
D 8 195 318764 1885.29 706 687 168.7
D 10 199 259955 1536.72 706 687 168.7

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