ASTROSAT CZTI

Data Quality Report

Orbit 06950

Creation date: 2024-06-27T15:13:34.512429
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/AS1A02_111T01_9000000954_06950cztM0_level2.evt modeM0/AS1A02_111T01_9000000954_06950cztM0_level2_quad_clean.evt
Size (bytes)116,277,12010,385,280
Size110.9 MB 9.9 MB
Events in quadrant A740,63150,047
Events in quadrant B817,88750,462
Events in quadrant C711,05250,252
Events in quadrant D1,143,53848,172

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032222
B034261
C031981
D045441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1556201.285347%
B1556382.442159%
C1556120.771208%
D1556372.377892%

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 1556 1556 0 0 0.00% 0.00%
B 1556 1556 0 0 0.00% 0.00%
C 1556 1556 0 0 0.00% 0.00%
D 1556 1556 18 18 1.16% 1.16%

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 0 143 3682 85.97 190 185 40.7
A 0 226 1895 42.04 190 185 40.7
A 12 194 1855 41.05 190 185 40.7
B 4 48 46433 1210.24 188 183 38.2
B 0 219 16536 427.92 188 183 38.2
B 0 245 6668 169.7 188 183 38.2
C 13 61 1462 29.52 181 182 43.4
C 3 233 730 12.64 181 182 43.4
C 7 159 657 10.95 181 182 43.4
D 8 195 103136 2234.07 181 175 46.1
D 14 34 89764 1943.93 181 175 46.1
D 2 152 84798 1836.17 181 175 46.1

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