ASTROSAT CZTI

Data Quality Report

Orbit 09959

Creation date: 2024-06-27T15:52:56.332904
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/AS1G07_016T01_9000001420_09959cztM0_level2.evt modeM0/AS1G07_016T01_9000001420_09959cztM0_level2_quad_clean.evt
Size (bytes)117,449,28028,091,520
Size112.0 MB 26.8 MB
Events in quadrant A748,878190,435
Events in quadrant B787,477191,747
Events in quadrant C623,168187,843
Events in quadrant D1,297,779174,015

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032076
B032979
C028716
D049003

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142820.140056%
B142790.630694%
C142800.000000%
D1430281.958042%

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 1431 1431 1 1 0.07% 0.07%
B 1431 1431 7 7 0.49% 0.49%
C 1431 1431 0 0 0.00% 0.00%
D 1431 1431 28 28 1.96% 1.96%

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 14 254 61075 1641.45 171 168 37.1
A 15 174 18667 498.55 171 168 37.1
A 13 14 6631 174.18 171 168 37.1
B 4 239 47039 1341.02 171 167 35.0
B 4 81 38937 1109.22 171 167 35.0
B 0 229 19652 557.47 171 167 35.0
C 13 61 1194 27.08 159 160 38.2
C 8 222 575 10.87 159 160 38.2
C 14 67 518 9.38 159 160 38.2
D 8 195 208151 5030.96 160 155 41.3
D 2 152 186144 4498.66 160 155 41.3
D 12 233 108703 2625.53 160 155 41.3

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