ASTROSAT CZTI

Data Quality Report

Orbit 28424

Creation date: 2024-06-27T19:51:36.730918
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_101T21_9000004090_28424cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28424cztM0_level2_quad_clean.evt
Size (bytes)484,891,200107,418,240
Size462.4 MB 102.4 MB
Events in quadrant A2,897,663731,535
Events in quadrant B3,016,844739,602
Events in quadrant C2,940,112704,768
Events in quadrant D5,410,440645,483

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126380
B0128730
C0126760
D0200270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181410.663323%
B6182400.647040%
C6182560.905856%
D618276812.423164%

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 7186 6181 0 0 0.00% 0.00%
B 7187 6182 0 0 0.00% 0.00%
C 7187 6182 1 1 0.01% 0.02%
D 7187 6182 691 691 9.61% 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 13 254 9853 60.06 748 730 151.9
A 3 137 7480 44.44 748 730 151.9
A 0 226 6378 37.18 748 730 151.9
B 10 245 56152 395.54 737 718 140.1
B 0 230 29147 202.85 737 718 140.1
B 12 111 17083 116.77 737 718 140.1
C 14 238 114922 686.72 714 715 166.3
C 7 220 39678 234.28 714 715 166.3
C 13 61 4911 25.23 714 715 166.3
D 1 52 2154995 13332.37 688 670 161.6
D 8 195 307826 1900.88 688 670 161.6
D 2 250 136902 843.09 688 670 161.6

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