ASTROSAT CZTI

Data Quality Report

Orbit 11299

Creation date: 2024-06-27T16:10:57.162337
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/AS1A04_144T01_9000001652_11299cztM0_level2.evt modeM0/AS1A04_144T01_9000001652_11299cztM0_level2_quad_clean.evt
Size (bytes)597,329,28072,457,920
Size569.7 MB 69.1 MB
Events in quadrant A4,725,419436,703
Events in quadrant B4,585,085447,082
Events in quadrant C3,106,527440,455
Events in quadrant D5,221,490404,820

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184823
B0180702
C0136712
D0200882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66704977.451274%
B66704486.716642%
C6670310.464768%
D66705017.511244%

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 7670 6671 290 290 3.78% 4.35%
B 7670 6671 206 206 2.69% 3.09%
C 7670 6671 0 0 0.00% 0.00%
D 7670 6670 388 388 5.06% 5.82%

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 8 5 1545831 9589.32 792 777 161.1
A 0 8 40743 248.05 792 777 161.1
A 1 162 27076 163.22 792 777 161.1
B 4 239 1268569 8169.62 808 788 155.2
B 4 81 44923 284.41 808 788 155.2
B 10 244 43406 274.63 808 788 155.2
C 9 204 9741 48.22 794 798 185.4
C 13 61 5913 27.58 794 798 185.4
C 14 234 3501 14.58 794 798 185.4
D 1 52 930433 4970.37 770 748 187.0
D 10 253 399424 2131.44 770 748 187.0
D 13 152 369078 1969.2 770 748 187.0

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