ASTROSAT CZTI

Data Quality Report

Orbit 02104

Creation date: 2024-06-27T14:14:11.350063
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/AS1P01_163T03_9000000324_02104cztM0_level2.evt modeM0/AS1P01_163T03_9000000324_02104cztM0_level2_quad_clean.evt
Size (bytes)3,407,0401,128,960
Size3.2 MB 1.1 MB
Events in quadrant A18,8714,119
Events in quadrant B25,5255,313
Events in quadrant C26,8576,460
Events in quadrant D24,4945,425

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209
B0196
C0197
D0197

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021172023
B020041882
C019101766
D018701742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5000.000000%
B6511.538462%
C7600.000000%
D7111.408451%

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 2007 94 0 0 0.00% 0.00%
B 1959 121 0 0 0.00% 0.00%
C 1911 147 0 0 0.00% 0.00%
D 1503 134 0 0 0.00% 0.00%

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 0 199 1673 777.28 4 4 2.1
A 11 204 16 5.59 4 4 2.1
A 4 249 16 5.59 4 4 2.1
B 0 198 1916 742.21 5 5 2.6
B 15 85 453 174.0 5 5 2.6
B 0 220 253 96.32 5 5 2.6
C 14 223 288 95.69 6 6 2.9
C 3 202 22 5.43 6 6 2.9
C 3 63 21 5.09 6 6 2.9
D 10 215 837 311.06 5 5 2.7
D 7 85 595 220.59 5 5 2.7
D 10 85 358 131.98 5 5 2.7

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