ASTROSAT CZTI

Data Quality Report

Orbit 15989

Creation date: 2024-06-27T17:16:11.644769
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/AS1G08_046T09_9000002358_15989cztM0_level2.evt modeM0/AS1G08_046T09_9000002358_15989cztM0_level2_quad_clean.evt
Size (bytes)450,619,20098,383,680
Size429.7 MB 93.8 MB
Events in quadrant A3,822,556638,470
Events in quadrant B3,354,199651,438
Events in quadrant C2,984,634623,778
Events in quadrant D3,054,550623,352

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155192
B0139941
C0129161
D0134251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63433285.171055%
B63431041.639603%
C6343400.630616%
D6343480.756740%

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 7329 6344 247 247 3.37% 3.89%
B 7329 6344 78 78 1.06% 1.23%
C 7329 6345 0 0 0.00% 0.00%
D 7329 6344 27 27 0.37% 0.43%

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 15 239 933914 6215.28 743 728 150.1
A 13 210 20084 128.92 743 728 150.1
A 15 69 8843 54.05 743 728 150.1
B 10 245 168040 1175.69 745 726 142.3
B 7 220 109913 767.24 745 726 142.3
B 15 222 26069 178.08 745 726 142.3
C 14 238 110264 659.18 714 717 166.2
C 3 233 73593 438.52 714 717 166.2
C 0 207 9994 55.82 714 717 166.2
D 10 70 57574 315.15 733 709 180.4
D 12 218 57212 313.14 733 709 180.4
D 2 152 50489 275.88 733 709 180.4

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