ASTROSAT CZTI

Data Quality Report

Orbit 11609

Creation date: 2024-06-27T16:15:52.209387
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/AS1C03_020T01_9000001706_11609cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11609cztM0_level2_quad_clean.evt
Size (bytes)677,784,96094,622,400
Size646.4 MB 90.2 MB
Events in quadrant A6,816,019588,393
Events in quadrant B4,790,641622,466
Events in quadrant C3,150,841627,526
Events in quadrant D5,333,329576,766

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249333
B0184902
C0135152
D0201712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6450108816.868217%
B64505077.860465%
C6450881.364341%
D645067810.511628%

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 7616 6452 597 597 7.84% 9.25%
B 7616 6452 244 244 3.20% 3.78%
C 7616 6452 0 0 0.00% 0.00%
D 7616 6452 302 302 3.97% 4.68%

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 3341811 20429.54 806 790 163.5
A 1 162 128381 780.19 806 790 163.5
A 1 178 72459 438.24 806 790 163.5
B 4 239 1341604 8478.29 826 807 158.1
B 0 219 52776 328.62 826 807 158.1
B 3 189 42406 263.04 826 807 158.1
C 13 61 5778 26.57 807 811 186.9
C 3 202 1966 6.18 807 811 186.9
C 13 250 1953 6.11 807 811 186.9
D 1 52 2178030 11562.27 784 762 188.3
D 8 195 64140 336.56 784 762 188.3
D 12 6 40602 211.57 784 762 188.3

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