ASTROSAT CZTI

Data Quality Report

Orbit 06700

Creation date: 2024-06-27T15:10:32.034549
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/AS1T01_145T01_9000000916_06700cztM0_level2.evt modeM0/AS1T01_145T01_9000000916_06700cztM0_level2_quad_clean.evt
Size (bytes)511,885,440110,966,400
Size488.2 MB 105.8 MB
Events in quadrant A2,952,017774,504
Events in quadrant B3,546,254781,064
Events in quadrant C2,695,209758,143
Events in quadrant D5,895,381621,310

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130402
B0147651
C0124231
D0214741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6089190.312038%
B60891492.447036%
C608960.098538%
D6089113618.656594%

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 7334 6090 1 1 0.01% 0.02%
B 7334 6090 75 75 1.02% 1.23%
C 7334 6090 0 0 0.00% 0.00%
D 7334 6090 953 953 12.99% 15.65%

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 8 15 182563 1276.09 704 690 142.5
A 13 251 38799 267.39 704 690 142.5
A 14 111 7290 46.31 704 690 142.5
B 4 80 561492 4150.99 712 695 135.1
B 0 219 107913 793.62 712 695 135.1
B 0 198 24289 174.64 712 695 135.1
C 9 247 30448 190.52 676 678 156.3
C 8 128 10185 60.84 676 678 156.3
C 13 61 5671 31.95 676 678 156.3
D 2 33 2908523 20036.28 589 569 145.1
D 8 195 418840 2881.96 589 569 145.1
D 2 136 119583 820.03 589 569 145.1

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