ASTROSAT CZTI

Data Quality Report

Orbit 24559

Creation date: 2024-06-27T19:07:15.137172
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/AS1T03_187T01_9000003608_24559cztM0_level2.evt modeM0/AS1T03_187T01_9000003608_24559cztM0_level2_quad_clean.evt
Size (bytes)418,968,00084,136,320
Size399.6 MB 80.2 MB
Events in quadrant A2,388,606563,913
Events in quadrant B2,402,726568,938
Events in quadrant C2,592,094540,450
Events in quadrant D4,968,254521,289

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105141
B0105121
C0110891
D0183631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5034521.032976%
B5034430.854191%
C5034841.668653%
D50351903.773585%

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 6079 5035 0 0 0.00% 0.00%
B 6079 5035 0 0 0.00% 0.00%
C 6079 5034 10 10 0.16% 0.20%
D 6080 5036 116 116 1.91% 2.30%

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 13 254 7958 58.52 619 607 125.6
A 3 137 5564 39.46 619 607 125.6
A 0 226 5404 38.19 619 607 125.6
B 12 111 13838 113.02 610 595 117.2
B 11 111 12647 102.85 610 595 117.2
B 14 111 11321 91.54 610 595 117.2
C 2 16 185720 1358.06 585 589 136.3
C 14 238 95309 694.84 585 589 136.3
C 5 112 17793 126.2 585 589 136.3
D 8 195 2271059 15760.06 594 575 144.1
D 1 52 293228 2031.39 594 575 144.1
D 12 218 135244 934.78 594 575 144.1

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