ASTROSAT CZTI

Data Quality Report

Orbit 07983

Creation date: 2024-06-27T15:26:22.097603
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/AS1G06_077T01_9000001090_07983cztM0_level2.evt modeM0/AS1G06_077T01_9000001090_07983cztM0_level2_quad_clean.evt
Size (bytes)1,063,224,000136,923,840
Size1014.0 MB 130.6 MB
Events in quadrant A11,109,762791,160
Events in quadrant B6,248,802836,795
Events in quadrant C6,337,187831,513
Events in quadrant D7,639,784802,777

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04162429
B02688622
C0270119
D03157014

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12786154112.052245%
B127872712.119340%
C127941621.266219%
D127926505.081301%

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 14052 12797 1076 1076 7.66% 8.41%
B 14052 12797 57 57 0.41% 0.45%
C 14052 12799 0 0 0.00% 0.00%
D 14052 12798 410 410 2.92% 3.20%

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 0 128 4362224 15179.25 1409 1378 287.3
A 4 2 1300440 4521.78 1409 1378 287.3
A 0 226 13026 40.54 1409 1378 287.3
B 5 250 276569 936.87 1516 1480 293.6
B 11 51 47909 158.12 1516 1480 293.6
B 12 111 33619 109.46 1516 1480 293.6
C 1 16 577677 1683.2 1471 1477 342.3
C 13 61 11203 28.41 1471 1477 342.3
C 9 236 6335 14.19 1471 1477 342.3
D 1 52 2075390 5766.76 1440 1398 359.6
D 13 169 64523 175.52 1440 1398 359.6
D 2 234 40391 108.42 1440 1398 359.6

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