ASTROSAT CZTI

Data Quality Report

Orbit 05952

Creation date: 2024-06-27T15:01:10.523810
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/AS1G06_157T01_9000000772_05952cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05952cztM0_level2_quad_clean.evt
Size (bytes)666,037,440108,887,040
Size635.2 MB 103.8 MB
Events in quadrant A5,524,088651,172
Events in quadrant B4,350,804702,437
Events in quadrant C4,183,034682,532
Events in quadrant D5,477,307612,227

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132
B0134
C0132
D0133

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286415797
B0238884438
C0236204182
D0290366172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023230
B023250
C023244
D023244

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A92453183.439697%
B94051601.701223%
C94631231.299799%
D91943633.948227%

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 12687 10588 125 125 0.99% 1.18%
B 12685 10698 5 5 0.04% 0.05%
C 12686 10723 0 0 0.00% 0.00%
D 12686 10510 219 219 1.73% 2.08%

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 2 815205 3817.26 1036 1010 213.3
A 13 251 706165 3306.04 1036 1010 213.3
A 8 192 20160 89.78 1036 1010 213.3
B 0 219 66285 316.87 1076 1048 205.9
B 15 255 66172 316.32 1076 1048 205.9
B 15 204 20840 96.13 1076 1048 205.9
C 1 16 39411 158.11 1052 1058 242.6
C 9 54 21947 86.11 1052 1058 242.6
C 9 68 11276 42.12 1052 1058 242.6
D 1 20 996653 4105.93 1001 969 242.5
D 2 63 635140 2615.15 1001 969 242.5
D 2 14 19945 78.25 1001 969 242.5

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