ASTROSAT CZTI

Data Quality Report

Orbit 47563

Creation date: 2024-07-15T11:52:09.593005
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/AS1C09_002T01_9000006334_47563cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47563cztM0_level2_quad_clean.evt
Size (bytes)456,511,680105,943,680
Size435.4 MB 101.0 MB
Events in quadrant A6,651,484704,996
Events in quadrant B3,158,298731,788
Events in quadrant C2,712,217702,859
Events in quadrant D3,902,222641,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239071
B0134401
C0124881
D0157711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61123145.137435%
B61121081.767016%
C6113641.046949%
D61131913.124489%

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 7297 6112 54 54 0.74% 0.88%
B 7297 6112 6 6 0.08% 0.10%
C 7298 6113 0 0 0.00% 0.00%
D 7298 6113 117 117 1.60% 1.91%

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 3708773 26023.91 701 689 142.5
A 9 191 208982 1461.83 701 689 142.5
A 14 248 13382 89.08 701 689 142.5
B 0 190 98587 724.94 705 686 135.0
B 0 186 71733 526.09 705 686 135.0
B 0 200 67903 497.73 705 686 135.0
C 3 233 13693 80.97 690 692 160.6
C 11 16 6085 33.59 690 692 160.6
C 13 61 4724 25.11 690 692 160.6
D 2 249 330012 1943.08 687 666 169.5
D 4 222 261443 1538.54 687 666 169.5
D 2 165 247202 1454.52 687 666 169.5

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