ASTROSAT CZTI

Data Quality Report

Orbit 47976

Creation date: 2024-08-11T20:21:33.468772
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_062T02_9000006384_47976cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47976cztM0_level2_quad_clean.evt
Size (bytes)741,228,480158,711,040
Size706.9 MB 151.4 MB
Events in quadrant A10,091,5461,039,272
Events in quadrant B4,710,9291,074,630
Events in quadrant C6,124,6541,019,272
Events in quadrant D5,695,572943,741

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379341
B0217861
C0261821
D0249381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105224183.972629%
B105233623.440084%
C105235675.388197%
D105234884.637461%

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 10562 10522 0 0 0.00% 0.00%
B 10563 10523 11 11 0.10% 0.10%
C 10563 10523 169 169 1.60% 1.61%
D 10563 10523 190 190 1.80% 1.81%

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 5669879 23765.42 1141 1114 238.5
A 0 31 17692 69.5 1141 1114 238.5
A 3 137 13819 53.26 1141 1114 238.5
B 7 221 42692 182.3 1144 1105 228.1
B 0 183 40537 172.85 1144 1105 228.1
B 12 0 37606 160.0 1144 1105 228.1
C 15 208 1426599 5389.78 1118 1124 264.5
C 14 254 273071 1028.24 1118 1124 264.5
C 12 2 40782 149.95 1118 1124 264.5
D 2 249 976231 3429.07 1131 1092 284.4
D 11 224 164118 573.28 1131 1092 284.4
D 5 32 82056 284.71 1131 1092 284.4

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