ASTROSAT CZTI

Data Quality Report

Orbit 41245

Creation date: 2024-06-27T22:26:27.097971
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/AS1A12_044T17_9000005636_41245cztM0_level2.fits modeM0/AS1A12_044T17_9000005636_41245cztM0_level2_quad_clean.evt
Size (bytes)352,932,48084,516,480
Size336.6 MB 80.6 MB
Events in quadrant A2,747,641579,431
Events in quadrant B3,509,761571,341
Events in quadrant C3,545,480541,797
Events in quadrant D2,869,348513,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110993
B0137802
C0138002
D0120202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5036130.258141%
B50362575.103257%
C50361843.653693%
D5037831.647806%

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 7069 5037 3 3 0.04% 0.06%
B 7069 5037 241 241 3.41% 4.78%
C 7069 5037 178 178 2.52% 3.53%
D 7070 5038 60 60 0.85% 1.19%

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 10 83 517321 4583.42 556 545 112.7
A 12 189 27457 238.69 556 545 112.7
A 0 8 21052 181.88 556 545 112.7
B 0 186 1116910 10616.72 542 526 105.2
B 0 190 107875 1020.88 542 526 105.2
B 5 172 49181 462.71 542 526 105.2
C 9 54 679682 5521.4 531 534 123.0
C 14 254 290542 2357.73 531 534 123.0
C 0 10 282453 2291.97 531 534 123.0
D 5 222 298835 2259.4 539 522 132.0
D 13 249 192765 1456.03 539 522 132.0
D 2 249 127058 958.37 539 522 132.0

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