ASTROSAT CZTI

Data Quality Report

Orbit 22626

Creation date: 2024-06-27T18:43:45.844541
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/AS1A07_112T01_9000003360_22626cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22626cztM0_level2_quad_clean.evt
Size (bytes)514,584,00075,119,040
Size490.7 MB 71.6 MB
Events in quadrant A2,992,171469,183
Events in quadrant B3,239,024474,709
Events in quadrant C3,076,055463,143
Events in quadrant D5,866,437444,704

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125971
B0134381
C0127631
D0215921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6057821.353806%
B60571041.717022%
C60581402.310994%
D605865510.812149%

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 7037 6058 0 0 0.00% 0.00%
B 7037 6058 0 0 0.00% 0.00%
C 7038 6059 0 0 0.00% 0.00%
D 7038 6059 521 521 7.40% 8.60%

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 11 47 15994 97.8 771 755 155.8
A 13 254 10287 61.18 771 755 155.8
A 0 226 6829 38.98 771 755 155.8
B 0 190 207315 1403.79 769 751 147.1
B 12 111 17433 113.37 769 751 147.1
B 11 111 15109 97.58 769 751 147.1
C 14 238 119076 679.06 748 753 174.2
C 0 10 29802 166.71 748 753 174.2
C 10 22 5650 28.1 748 753 174.2
D 1 52 1665334 9196.93 741 719 181.0
D 1 239 1246704 6884.02 741 719 181.0
D 10 230 58877 321.32 741 719 181.0

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