ASTROSAT CZTI

Data Quality Report

Orbit 17416

Creation date: 2024-06-27T17:36:16.615999
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/AS1A05_198T01_9000002578_17416cztM0_level2.evt modeM0/AS1A05_198T01_9000002578_17416cztM0_level2_quad_clean.evt
Size (bytes)528,312,960102,113,280
Size503.8 MB 97.4 MB
Events in quadrant A3,511,926658,537
Events in quadrant B4,030,624666,082
Events in quadrant C3,625,089635,303
Events in quadrant D4,334,426621,844

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153382
B0165472
C0153253
D0178902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7331610.832083%
B73321361.854883%
C7331961.309508%
D73311231.677807%

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 8731 7333 3 3 0.03% 0.04%
B 8732 7334 11 11 0.13% 0.15%
C 8731 7333 0 0 0.00% 0.00%
D 8731 7333 76 76 0.87% 1.04%

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 4 2 44346 237.06 900 880 183.4
A 0 226 8021 38.95 900 880 183.4
A 13 210 6747 32.0 900 880 183.4
B 15 35 173455 995.32 902 880 173.4
B 0 219 108743 622.09 902 880 173.4
B 7 220 66074 376.0 902 880 173.4
C 14 238 132583 652.2 855 860 202.0
C 5 218 86925 426.13 855 860 202.0
C 3 233 34936 168.72 855 860 202.0
D 11 176 434986 2024.91 865 840 214.4
D 13 232 179533 833.44 865 840 214.4
D 13 189 166432 772.34 865 840 214.4

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