ASTROSAT CZTI

Data Quality Report

Orbit 19116

Creation date: 2024-06-27T17:59:14.189847
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_046T01_9000002838_19116cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19116cztM0_level2_quad_clean.evt
Size (bytes)244,926,72031,826,880
Size233.6 MB 30.4 MB
Events in quadrant A1,412,567194,552
Events in quadrant B1,562,138197,580
Events in quadrant C1,410,323191,508
Events in quadrant D2,847,405186,158

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058441
B063521
C057901
D0102141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2702461.702443%
B2702863.182828%
C2701622.295446%
D270149518.326546%

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 3732 2703 0 0 0.00% 0.00%
B 3732 2702 15 15 0.40% 0.56%
C 3731 2702 0 0 0.00% 0.00%
D 3731 2702 302 302 8.09% 11.18%

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 9 143 14404 189.03 362 354 74.3
A 0 226 3228 38.67 362 354 74.3
A 13 254 2903 34.29 362 354 74.3
B 7 220 122177 1716.66 360 351 71.0
B 0 197 14622 201.09 360 351 71.0
B 12 111 7965 107.29 360 351 71.0
C 14 238 53310 644.25 346 349 82.2
C 3 233 4099 45.62 346 349 82.2
C 13 61 2435 25.38 346 349 82.2
D 7 238 1107837 13365.89 335 324 82.9
D 12 218 321954 3881.55 335 324 82.9
D 11 176 60704 728.69 335 324 82.9

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