ASTROSAT CZTI

Data Quality Report

Orbit 44077

Creation date: 2024-06-27T22:59:06.598827
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_029T01_9000005940_44077cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44077cztM0_level2_quad_clean.evt
Size (bytes)1,199,157,120276,886,080
Size1.1 GB 264.1 MB
Events in quadrant A12,224,2001,863,507
Events in quadrant B8,070,9001,910,260
Events in quadrant C8,348,4241,827,170
Events in quadrant D14,379,1281,565,658

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03600
B03600
C03600
D03600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0482752
B0365542
C0378032
D0550742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176495903.342966%
B176504902.776204%
C176503481.971671%
D17650179510.169972%

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 18569 17652 85 85 0.46% 0.48%
B 18570 17653 0 0 0.00% 0.00%
C 18569 17652 58 58 0.31% 0.33%
D 18570 17652 1275 1275 6.87% 7.22%

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 2696192 6425.57 2033 1993 419.3
A 15 222 1442420 3435.36 2033 1993 419.3
A 12 227 189320 446.77 2033 1993 419.3
B 12 111 53857 127.9 2033 1964 405.7
B 11 111 49873 118.08 2033 1964 405.7
B 14 111 48969 115.85 2033 1964 405.7
C 14 254 226569 472.12 2008 2024 475.6
C 15 158 139292 288.62 2008 2024 475.6
C 4 254 39538 78.88 2008 2024 475.6
D 13 249 4044074 8373.57 1913 1856 482.7
D 1 52 2040146 4222.38 1913 1856 482.7
D 5 235 572820 1182.77 1913 1856 482.7

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