ASTROSAT CZTI

Data Quality Report

Orbit 47622

Creation date: 2024-07-18T22:30:13.301178
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/AS1A13_071T01_9000006340_47622cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47622cztM0_level2_quad_clean.evt
Size (bytes)492,091,200100,728,000
Size469.3 MB 96.1 MB
Events in quadrant A6,997,605669,860
Events in quadrant B4,694,904641,539
Events in quadrant C2,790,812678,102
Events in quadrant D3,247,297623,917

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253811
B0183361
C0130041
D0142181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62493796.064970%
B625072211.552000%
C6250160.256000%
D6250851.360000%

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 7259 6250 140 140 1.93% 2.24%
B 7260 6251 408 408 5.62% 6.53%
C 7260 6251 4 4 0.06% 0.06%
D 7260 6251 54 54 0.74% 0.86%

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 3556520 24505.67 699 684 145.1
A 13 248 345226 2374.47 699 684 145.1
A 9 191 329776 2268.0 699 684 145.1
B 5 172 1602237 11871.23 677 656 134.9
B 0 200 323417 2392.36 677 656 134.9
B 0 190 27357 197.91 677 656 134.9
C 14 220 34179 206.75 686 690 162.0
C 1 3 30132 181.76 686 690 162.0
C 14 254 27870 167.8 686 690 162.0
D 2 249 352294 2024.18 691 669 173.7
D 8 176 84833 484.5 691 669 173.7
D 2 234 30973 174.45 691 669 173.7

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