ASTROSAT CZTI

Data Quality Report

Orbit 48365

Creation date: 2024-09-07T12:21:32.339198
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_9000006426_48365cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48365cztM0_level2_quad_clean.evt
Size (bytes)611,311,680140,155,200
Size583.0 MB 133.7 MB
Events in quadrant A9,309,765920,070
Events in quadrant B4,675,089954,252
Events in quadrant C3,908,273915,673
Events in quadrant D4,051,978840,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0339010
B0202100
C0183210
D0186350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88213694.183199%
B88221491.688959%
C8822180.204035%
D8822270.306053%

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 8821 8821 82 82 0.93% 0.93%
B 8822 8822 41 41 0.46% 0.46%
C 8822 8822 6 6 0.07% 0.07%
D 8822 8822 16 16 0.18% 0.18%

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 5234480 25002.89 994 971 209.3
A 13 248 130050 616.67 994 971 209.3
A 0 31 76130 359.07 994 971 209.3
B 4 21 343797 1725.04 994 962 198.7
B 0 198 157967 790.0 994 962 198.7
B 0 186 108012 538.64 994 962 198.7
C 1 16 26764 111.47 978 981 231.3
C 12 250 24189 100.34 978 981 231.3
C 12 2 19111 78.39 978 981 231.3
D 2 120 81636 329.97 979 948 244.5
D 12 0 60760 244.6 979 948 244.5
D 2 234 52206 209.62 979 948 244.5

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