ASTROSAT CZTI

Data Quality Report

Orbit 29711

Creation date: 2024-06-27T20:07:02.907913
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/AS1A10_007T01_9000004276_29711cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29711cztM0_level2_quad_clean.evt
Size (bytes)1,030,677,120155,695,680
Size982.9 MB 148.5 MB
Events in quadrant A5,806,783980,851
Events in quadrant B9,481,016987,512
Events in quadrant C6,474,946979,190
Events in quadrant D8,629,367925,436

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252022
B0371942
C0266012
D0341122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121861060.869851%
B121863382.773675%
C121873132.568310%
D121874373.585788%

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 12896 12188 0 0 0.00% 0.00%
B 12896 12188 5 5 0.04% 0.04%
C 12897 12189 13 13 0.10% 0.11%
D 12897 12189 273 273 2.12% 2.24%

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 13 254 24003 74.2 1501 1465 303.8
A 3 137 15461 46.08 1501 1465 303.8
A 0 226 12599 36.65 1501 1465 303.8
B 6 159 3530203 12221.55 1484 1443 288.7
B 0 229 85574 291.38 1484 1443 288.7
B 12 111 36765 122.33 1484 1443 288.7
C 3 233 335797 971.34 1454 1463 344.2
C 14 238 239877 692.67 1454 1463 344.2
C 7 247 105065 301.0 1454 1463 344.2
D 8 195 1777957 5089.43 1450 1409 349.1
D 7 80 979829 2802.97 1450 1409 349.1
D 2 250 248793 708.7 1450 1409 349.1

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