ASTROSAT CZTI

Data Quality Report

Orbit 12240

Creation date: 2024-06-27T16:24:18.334408
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/AS1C03_014T03_9000001808_12240cztM0_level2.evt modeM0/AS1C03_014T03_9000001808_12240cztM0_level2_quad_clean.evt
Size (bytes)475,718,400114,796,800
Size453.7 MB 109.5 MB
Events in quadrant A3,896,334765,198
Events in quadrant B4,056,293767,232
Events in quadrant C2,917,329768,870
Events in quadrant D3,113,373739,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156762
B0160861
C0130671
D0135851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62341622.598653%
B62343705.935194%
C6234791.267244%
D6234791.267244%

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 7190 6236 35 35 0.49% 0.56%
B 7190 6236 191 191 2.66% 3.06%
C 7190 6236 19 19 0.26% 0.30%
D 7190 6236 23 23 0.32% 0.37%

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 13 251 527698 3585.88 722 707 147.0
A 1 162 150983 1022.54 722 707 147.0
A 5 16 134431 909.92 722 707 147.0
B 4 239 622101 4619.79 716 698 134.5
B 3 64 484048 3593.44 716 698 134.5
B 11 51 70823 521.34 716 698 134.5
C 15 208 139098 845.17 710 713 163.7
C 13 61 5142 27.05 710 713 163.7
C 4 175 4885 25.48 710 713 163.7
D 10 199 112838 669.23 705 683 167.6
D 2 33 88675 525.05 705 683 167.6
D 13 249 53985 318.05 705 683 167.6

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