ASTROSAT CZTI

Data Quality Report

Orbit 07230

Creation date: 2024-06-27T15:17:34.863402
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/AS1G06_036T01_9000000988_07230cztM0_level2.evt modeM0/AS1G06_036T01_9000000988_07230cztM0_level2_quad_clean.evt
Size (bytes)995,532,480163,949,760
Size949.4 MB 156.4 MB
Events in quadrant A6,484,0081,000,457
Events in quadrant B6,729,2561,019,090
Events in quadrant C8,029,0101,016,094
Events in quadrant D7,969,274972,014

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285414
B0289803
C0331923
D0335323

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02840
B02840
C02840
D02840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138662972.141930%
B138663032.185201%
C138663202.307803%
D138663982.870330%

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 15261 13866 0 0 0.00% 0.00%
B 15261 13866 5 5 0.03% 0.04%
C 15261 13866 58 58 0.38% 0.42%
D 15261 13866 127 127 0.83% 0.92%

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 15 143834 424.46 1635 1596 335.1
A 14 238 17035 46.07 1635 1596 335.1
A 0 226 15459 41.37 1635 1596 335.1
B 0 214 172932 540.58 1649 1606 316.9
B 4 81 54217 166.0 1649 1606 316.9
B 12 111 33745 101.41 1649 1606 316.9
C 9 68 1789356 4792.33 1595 1603 373.0
C 13 61 12278 28.61 1595 1603 373.0
C 9 243 9348 20.76 1595 1603 373.0
D 2 216 1337728 3446.78 1592 1544 387.7
D 2 14 356971 916.85 1592 1544 387.7
D 14 34 181709 464.75 1592 1544 387.7

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