ASTROSAT CZTI

Data Quality Report

Orbit 47493

Creation date: 2024-07-10T05:57:57.756768
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/AS1A13_089T01_9000006330_47493cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47493cztM0_level2_quad_clean.evt
Size (bytes)597,049,920125,187,840
Size569.4 MB 119.4 MB
Events in quadrant A8,382,942810,032
Events in quadrant B4,654,881835,283
Events in quadrant C3,845,902836,196
Events in quadrant D4,604,129759,491

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0303841
B0193361
C0172251
D0193361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79104605.815424%
B79104405.562579%
C79111121.415750%
D79111802.275313%

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 8995 7913 27 27 0.30% 0.34%
B 8995 7913 127 127 1.41% 1.60%
C 8996 7914 28 28 0.31% 0.35%
D 8996 7914 89 89 0.99% 1.12%

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 4466203 23930.59 893 874 186.6
A 15 235 337043 1801.6 893 874 186.6
A 9 191 104548 555.61 893 874 186.6
B 0 200 468168 2603.72 900 872 179.5
B 5 32 442813 2462.45 900 872 179.5
B 0 198 118455 655.16 900 872 179.5
C 0 207 180261 841.88 897 902 213.0
C 12 2 59653 275.77 897 902 213.0
C 3 233 35422 162.03 897 902 213.0
D 2 165 775161 3435.77 891 862 225.4
D 2 249 122444 539.49 891 862 225.4
D 7 55 79818 350.35 891 862 225.4

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