ASTROSAT CZTI

Data Quality Report

Orbit 41213

Creation date: 2024-06-27T22:26:01.169273
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/AS1C07_001T12_9000005632_41213cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41213cztM0_level2_quad_clean.evt
Size (bytes)334,296,00083,122,560
Size318.8 MB 79.3 MB
Events in quadrant A2,572,045571,787
Events in quadrant B3,339,389574,552
Events in quadrant C2,908,883539,619
Events in quadrant D3,182,745496,397

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103662
B0132401
C0116311
D0127751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A477170.146720%
B47712014.212953%
C47711262.640956%
D47711833.835674%

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 6804 4772 3 3 0.04% 0.06%
B 6804 4772 102 102 1.50% 2.14%
C 6804 4772 107 107 1.57% 2.24%
D 6804 4772 180 180 2.65% 3.77%

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 10 83 434034 3989.14 534 524 108.7
A 0 8 32395 293.28 534 524 108.7
A 12 189 25091 226.06 534 524 108.7
B 0 186 670253 6654.27 523 509 100.6
B 0 190 350410 3476.46 523 509 100.6
B 0 229 155481 1539.73 523 509 100.6
C 14 254 657457 5695.91 503 505 115.3
C 15 214 203699 1761.73 503 505 115.3
C 0 10 77740 669.64 503 505 115.3
D 5 222 743993 6041.15 508 494 123.1
D 13 249 281786 2285.58 508 494 123.1
D 2 120 71482 576.8 508 494 123.1

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