ASTROSAT CZTI

Data Quality Report

Orbit 08330

Creation date: 2024-06-27T15:31:12.602968
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/AS1G07_029T01_9000001158_08330cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08330cztM0_level2_quad_clean.evt
Size (bytes)802,474,560159,353,280
Size765.3 MB 152.0 MB
Events in quadrant A5,779,822989,270
Events in quadrant B5,939,254999,785
Events in quadrant C5,712,127993,247
Events in quadrant D6,008,312963,580

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261843
B0264302
C0260812
D0270172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12741630.494467%
B12741760.596499%
C12741360.282552%
D12741470.368888%

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 13961 12743 1 1 0.01% 0.01%
B 13961 12743 2 2 0.01% 0.02%
C 13961 12743 4 4 0.03% 0.03%
D 13961 12743 14 14 0.10% 0.11%

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 13 248 50249 164.09 1464 1431 297.5
A 15 234 39854 129.15 1464 1431 297.5
A 15 223 27413 87.33 1464 1431 297.5
B 0 214 98255 342.82 1472 1434 282.4
B 4 81 54307 187.21 1472 1434 282.4
B 0 219 31889 107.83 1472 1434 282.4
C 9 54 98103 289.0 1434 1435 334.5
C 8 128 14400 38.76 1434 1435 334.5
C 13 61 10980 28.54 1434 1435 334.5
D 1 52 249542 704.62 1422 1383 352.2
D 2 152 128439 360.76 1422 1383 352.2
D 2 14 116420 326.63 1422 1383 352.2

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