ASTROSAT CZTI

Data Quality Report

Orbit 43262

Creation date: 2024-06-27T22:49:55.661746
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/AS1A06_006T01_9000005860_43262cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43262cztM0_level2_quad_clean.evt
Size (bytes)394,453,44095,270,400
Size376.2 MB 90.9 MB
Events in quadrant A3,808,451624,136
Events in quadrant B2,613,918658,780
Events in quadrant C3,454,864624,175
Events in quadrant D4,256,491557,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150262
B0121602
C0140422
D0168632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60081883.129161%
B6007130.216414%
C60071502.497087%
D60073956.575662%

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 7321 6009 120 120 1.64% 2.00%
B 7320 6008 1 1 0.01% 0.02%
C 7320 6008 140 140 1.91% 2.33%
D 7320 6008 357 357 4.88% 5.94%

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 639838 4832.82 642 631 132.3
A 15 237 568309 4292.02 642 631 132.3
A 13 248 93252 700.28 642 631 132.3
B 5 255 40593 313.44 647 628 127.5
B 12 111 16361 123.39 647 628 127.5
B 11 111 14917 112.07 647 628 127.5
C 14 254 706545 4720.18 632 635 149.6
C 15 214 262028 1747.85 632 635 149.6
C 3 233 8820 54.73 632 635 149.6
D 13 249 973202 6328.54 620 602 153.7
D 2 249 571446 3714.38 620 602 153.7
D 1 52 175089 1135.36 620 602 153.7

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