ASTROSAT CZTI

Data Quality Report

Orbit 06420

Creation date: 2024-06-27T15:06:58.821841
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/AS1C02_011T01_9000000850_06420cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06420cztM0_level2_quad_clean.evt
Size (bytes)764,110,080128,220,480
Size728.7 MB 122.3 MB
Events in quadrant A5,600,365778,587
Events in quadrant B5,601,146793,567
Events in quadrant C4,968,336789,338
Events in quadrant D6,220,048753,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02280
B02280
C02280
D02280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245032
B0240122
C0227902
D0260212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110841871.687117%
B110841941.750271%
C11084570.514255%
D110842051.849513%

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 11734 11087 7 7 0.06% 0.06%
B 11734 11087 28 28 0.24% 0.25%
C 11734 11087 0 0 0.00% 0.00%
D 11734 11087 104 104 0.89% 0.94%

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 8 15 377417 1422.42 1299 1269 264.4
A 13 251 185822 697.89 1299 1269 264.4
A 15 236 31760 115.3 1299 1269 264.4
B 4 81 304749 1193.89 1313 1279 254.2
B 15 204 63907 246.38 1313 1279 254.2
B 0 219 47294 181.03 1313 1279 254.2
C 13 61 10298 30.36 1271 1282 297.0
C 8 222 5071 12.76 1271 1282 297.0
C 8 208 3728 8.24 1271 1282 297.0
D 7 55 410225 1311.81 1267 1231 311.8
D 2 63 303186 968.49 1267 1231 311.8
D 2 152 300635 960.31 1267 1231 311.8

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