先驱异常：评估新获得的数据
Pioneer Anomaly: Evaluating Newly Recovered Data
摘要：
先驱者10/11号航天器在深空进行了迄今为止最精确的导航。然而，他们从距离太阳20- 70天文单位的地方收到的无线电测量跟踪数据始终表明存在一个小的、异常的多普勒频率漂移。漂移是一种蓝色的频率偏移，可以解释为每个特定航天器的向阳加速度a_P =（8.74 +/- 1.33）x 10^（-10）m/s^2。这个信号被称为先锋异常;这个异常的性质仍然无法解释。新的先驱者10号和11号无线电测量多普勒数据最近已经提供。更广泛的先锋多普勒数据集是即将进行的新的异常调查的主要来源。我们也有几乎全部的飞行遥测文件记录从先驱者收到。连同原始项目文件和新开发的软件工具，这些额外的信息现在被用来重建这两个航天器的工程历史。在这方面，正在开发先锋号飞行器的热模型，以研究作用于这两个航天器的热反冲力可能产生的作用。此外，为了提高轨道重建的准确性，我们开发了一种新的方法，在无线电测量多普勒文件的轨迹分析期间使用实际飞行遥测数据。这些努力的最终目标是调查可能的贡献的热反冲力检测到的异常加速度。
英文摘要：
The Pioneer 10/11 spacecraft yielded the most precise navigation in deep space to date. However, their radio-metric tracking data received from the distances between 20--70 astronomical units from the Sun consistently indicated the presence of a small, anomalous, Doppler frequency drift. The drift is a blue frequency shift that can be interpreted as a sunward acceleration of a_P = (8.74 +/- 1.33) x 10^(-10) m/s^2 for each particular spacecraft. This signal has become known as the Pioneer anomaly; the nature of this anomaly remains unexplained. New Pioneer 10 and 11 radio-metric Doppler data recently became available. The much extended set of Pioneer Doppler data is the primary source for new upcoming investigation of the anomaly. We also have almost entire records of flight telemetry files received from the the Pioneers. Together with original project documentation and newly developed software tools, this additional information is now used to reconstruct the engineering history of both spacecraft. To that extent, a thermal model of the Pioneer vehicles is being developed to study possible contribution of thermal recoil force acting on the two spacecraft. In addition, to improve the accuracy of orbital reconstruction, we developed a new approach that uses actual flight telemetry data during trajectory analysis of radio-metric Doppler files. The ultimate goal of these efforts is to investigate possible contributions of the thermal recoil force to the detected anomalous acceleration.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
