ASTROSAT CZTI

Data Quality Report

Orbit 04670

Creation date: 2024-06-27T14:45:25.516712
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/AS1G05_215T01_9000000586_04670cztM0_level2.evt modeM0/AS1G05_215T01_9000000586_04670cztM0_level2_quad_clean.evt
Size (bytes)771,943,68067,996,800
Size736.2 MB 64.8 MB
Events in quadrant A2,739,919494,730
Events in quadrant B3,055,114501,082
Events in quadrant C2,710,299487,572
Events in quadrant D14,459,326146,947

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124632
B0131081
C0124121
D0468611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6111510.834561%
B6111510.834561%
C6111480.785469%
D6111495781.116020%

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 7111 6112 0 0 0.00% 0.00%
B 7111 6112 1 1 0.01% 0.02%
C 7111 6112 0 0 0.00% 0.00%
D 7110 6110 4537 4537 63.81% 74.26%

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 15534 102.57 707 693 144.7
A 0 226 6893 42.85 707 693 144.7
A 12 194 6889 42.82 707 693 144.7
B 15 204 174691 1261.02 714 696 138.0
B 14 167 74980 538.37 714 696 138.0
B 0 219 23813 167.54 714 696 138.0
C 13 61 5509 29.51 693 695 163.1
C 9 247 2123 8.75 693 695 163.1
C 9 54 2025 8.15 693 695 163.1
D 8 112 12608305 162340.01 319 309 77.7
D 2 63 219262 2819.23 319 309 77.7
D 13 239 134234 1724.41 319 309 77.7

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