ASTROSAT CZTI

Data Quality Report

Orbit 11529

Creation date: 2024-06-27T16:14:18.151829
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/AS1A04_022T05_9000001690_11529cztM0_level2.evt modeM0/AS1A04_022T05_9000001690_11529cztM0_level2_quad_clean.evt
Size (bytes)1,062,884,160167,048,640
Size1013.6 MB 159.3 MB
Events in quadrant A9,587,7021,002,739
Events in quadrant B7,744,1451,024,597
Events in quadrant C5,983,8261,088,057
Events in quadrant D7,969,8921,018,997

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375544
B0320883
C0271623
D0333263

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133808416.285501%
B133803762.810164%
C13380140.104634%
D133802151.606876%

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 15011 13382 504 504 3.36% 3.77%
B 15011 13384 160 160 1.07% 1.20%
C 15011 13384 0 0 0.00% 0.00%
D 15011 13384 178 178 1.19% 1.33%

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 5 3452507 11273.41 1508 1471 306.1
A 9 143 113174 364.9 1508 1471 306.1
A 1 162 73998 236.92 1508 1471 306.1
B 4 239 1184324 4041.99 1540 1502 292.6
B 15 204 262786 892.87 1540 1502 292.6
B 3 189 85847 288.23 1540 1502 292.6
C 13 61 11158 26.94 1532 1539 357.0
C 14 67 8021 18.16 1532 1539 357.0
C 7 236 5043 9.82 1532 1539 357.0
D 1 52 834100 2284.59 1512 1468 364.5
D 8 195 531578 1454.52 1512 1468 364.5
D 10 253 290905 794.16 1512 1468 364.5

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