ASTROSAT CZTI

Data Quality Report

Orbit 01319

Creation date: 2024-06-27T14:10:55.063170
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/AS1G04_002T02_9000000230_01319cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01319cztM0_level2_quad_clean.evt
Size (bytes)1,118,174,40099,685,440
Size1.0 GB 95.1 MB
Events in quadrant A9,801,349631,580
Events in quadrant B8,943,535655,468
Events in quadrant C7,753,818640,742
Events in quadrant D6,926,410628,888

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338643
B0312382
C0277552
D0253222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66243955.963164%
B6624681.026570%
C6624260.392512%
D6624230.347222%

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 7574 6625 1191 1191 15.72% 17.98%
B 7574 6625 602 602 7.95% 9.09%
C 7574 6626 197 197 2.60% 2.97%
D 7574 6626 163 163 2.15% 2.46%

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 4 32 1935320 4071.07 1971 1980 474.9
A 0 128 254874 532.52 1971 1980 474.9
A 12 243 28777 56.43 1971 1980 474.9
B 8 4 797731 1621.46 2095 2104 490.7
B 6 53 96887 193.16 2095 2104 490.7
B 15 22 36785 70.68 2095 2104 490.7
C 15 241 336607 648.51 1865 1927 516.1
C 3 9 41535 76.75 1865 1927 516.1
C 9 54 26032 46.71 1865 1927 516.1
D 10 84 100405 178.31 1794 1853 552.7
D 15 13 38487 66.28 1794 1853 552.7
D 1 83 22450 37.26 1794 1853 552.7

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