ASTROSAT CZTI

Data Quality Report

Orbit 59006

Creation date: 2026-08-24T09:22:11.486049
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/AS1A14_004T07_9000006598_59006cztM0_level2.fits modeM0/AS1A14_004T07_9000006598_59006cztM0_level2_quad_clean.evt
Size (bytes)792,993,60090,290,880
Size756.3 MB 86.1 MB
Events in quadrant A5,116,405635,491
Events in quadrant B3,167,017728,146
Events in quadrant C7,623,165601,816
Events in quadrant D12,937,466308,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196472
B0139392
C0271432
D0429042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65944947.491659%
B6594691.046406%
C659468010.312405%
D6594369756.066121%

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 7794 6594 373 373 4.79% 5.66%
B 7794 6594 16 16 0.21% 0.24%
C 7794 6595 677 677 8.69% 10.27%
D 7793 6593 3715 3715 47.67% 56.35%

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 10 251 738431 4097.55 728 709 180.0
A 14 238 685361 3802.78 728 709 180.0
A 3 14 366581 2032.17 728 709 180.0
B 0 157 38069 231.59 747 719 161.3
B 6 255 37446 227.73 747 719 161.3
B 4 201 28032 169.36 747 719 161.3
C 15 219 4544845 23131.8 712 705 196.4
C 6 223 85532 431.81 712 705 196.4
C 12 250 73787 372.02 712 705 196.4
D 12 110 9797659 57156.9 595 566 171.4
D 2 62 481340 2804.87 595 566 171.4
D 6 239 170333 990.43 595 566 171.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct